CourtSide

• A match charting tool parents can use courtside during live matches, with multiple detail levels from simple score tracking to full point-by-point analysis
• A development journal that captures the emotional and mental side of competition — effort, compete level, fun, reflections — creating a longitudinal record of growth
• A parent dashboard that connects matches, training, tournaments, and trends into a single view of each player's journey
• A privacy-aware platform where coaches see performance data automatically, and families choose whether to share journals, reflections, and emotional data with their coach

• Parent's lens, not the coach's clipboard. CourtSide captures what the parent sees from the stands — patterns, behavior, effort — not just technical metrics
• Emotional development is data. How a player handles a loss is as important as their first-serve percentage. CourtSide treats reflections, compete ratings, and tournament journals as first-class data
• Low floor, high ceiling. A parent can start by just tapping scores. Over time, they can layer in detailed charting, journals, training blocks, and opponent scouting — at their own pace
• Private by default, shared by choice. Every piece of data starts private. Coaches see performance data automatically. Parents decide whether to share journals, reflections, and ratings with their coach — and can change that anytime
• Load awareness, not load management. Subtle contextual cues about activity levels, not prescriptive alerts. Parents make their own decisions

Two distinct access roles with different permissions. Parents authenticate via Supabase (magic link or social). Coaches access the family's data via the web-based coach portal (email magic link + MFA) or through a mobile coach view within the family's app.

• Account creation — Magic link (email) or social login (Google, Apple). No passwords to remember. Powered by Supabase Auth
• Family profile setup — Parent name, email (pre-filled from auth), optional device PIN for quick unlock on shared family devices
• First player creation — Guided flow: player name, age, handedness, backhand type, play style. Ratings (USTA, UTR, ITF) optional at this stage
• Coach access setup — Generate a coach PIN that the family shares with their coach. Explain what coaches see by default and what's private
• First match prompt — After player creation, prompt to chart their first match or explore the app. Progressive disclosure — don't overwhelm with every feature on day one

• Primary auth — Supabase Auth with magic link (email) and social providers (Google, Apple). Session persists on device
• Multi-factor authentication (MFA) — Required on every login. SMS verification code sent to the parent's registered phone number. This is mandatory, not optional — the app stores photos and videos of minors. Supabase supports SMS-based MFA via Twilio
• Quick unlock — After MFA-authenticated login, the device session stays active. Returning users unlock with biometric (Face ID / fingerprint) or 4-digit device PIN. MFA is not required again until the session expires or the user logs out
• Coach access — Separate PIN entry on mobile. Web portal uses a coach-specific login (email + magic link + SMS MFA, scoped to coach role)
• Session management — Active sessions visible in settings. Remote logout for lost devices. Session expiration after 30 days of inactivity forces re-authentication with MFA
• Family account — One subscription covers multiple players. Parent is the account owner. No separate accounts per child
• New device login — Logging in from a new device always requires full authentication (magic link or social + SMS MFA). No way to bypass MFA on an unrecognized device

• Match charting works fully offline. All point tracking, scoring, tier switching, undo, and match completion run on-device with zero network dependency. This is non-negotiable — a dropped connection during a match must never interrupt charting
• Local-first data model. All data writes go to the local device first, then sync to Supabase when a connection is available. The app is always responsive regardless of network state
• Sync queue. Actions taken offline (matches charted, journals written, opponents added) queue up and sync in order when connectivity returns. Visual indicator shows sync status (synced, pending, syncing)
• Conflict resolution. If the same record is edited on two devices while offline, most recent write wins with a merge log. For matches (which are almost always edited on one device), conflicts are rare
• Offline indicator. Subtle banner or icon when the device is offline. Never blocks the user from doing anything — just context

• Web checkout. Subscriptions handled via Stripe on the Next.js website. App deep-links to the checkout page. This avoids Apple's 30%/15% App Store commission
• Trial. 7-day or 2-match free trial on any plan (whichever comes first). Full feature access during trial
• Tier gating. Feature access controlled by subscription tier via feature flags. Synced between mobile app and web dashboard. Locked features show a preview with upgrade prompt — never a dead end
• Plan management. Upgrade, downgrade, cancel, and payment method changes all handled on the web. In-app link to billing portal
• Family account. One subscription covers all players in the family. No per-player pricing
• Data export. Elite tier includes CSV/PDF export of match history, stats, journals, and trends. Available from settings and from the web dashboard

Before charting begins, the parent configures the match parameters. All fields are optional except player names and format.

• Player & Opponent names — Opponent field auto-suggests from saved opponents list
• Match format — Best of 3 sets, single set, or tiebreak only
• Charting tier selection — Score + Notes, Basic, Detailed, or Full (see Scoring Tiers)
• First server selection — Your player or opponent
• Tournament match toggle — Expands to capture tournament name, location, event/division, draw type, round, and seed
• Training block link — Optional chips to tag the match to a current training focus area

The primary charting interface, used during live match play. All interactions are large tap targets designed for courtside use on a phone.

• Scoreboard — Always visible at top. Shows current set scores, game score, point count, server indicator. Tap to open the score editor overlay for manual corrections
• Serve indicator — Text displaying who is serving and whether it's first or second serve. Tap the serve dot to manually switch server
• Tier toggle bar — Switch between Score, Basic, Detailed, and Full views mid-match without losing data
• Fast Mode toggle — Tap player name to score a point instantly (useful for rapid play)
• Point Builder strip — Visual display of the current point entry as you build it tap by tap
• Haptic feedback — Subtle vibration on point registration, undo, and set completion. Confirms input without looking at the screen — critical for courtside use where eyes should be on the match
• Guided prompts — Dynamic question flow based on the selected tier (Who won? How did it end? Shot type? Placement?)
• REC button — Record video or audio during the match
• Undo — Roll back the last point entry
• Theme toggle — Switch dark/light mode without leaving the chart screen (for outdoor visibility)

• Final score display with winner badge and match format indicator
• Match duration — editable hours/minutes fields (auto-calculated from start time if available)
• Recording status — Shows if video/audio was captured during the match
• Tournament badge — If tournament match, shows tournament name, round, and link to full tournament view
• Training block badge — If linked to a training block, shows block name with training reflection prompt
• Stats breakdown — Full statistical summary based on charting tier (aces, DFs, winners, UEs, break points, shot types, rally lengths, etc.)
• Journal prompt — "Want to reflect on this match?" with three options: Reflect Now, Remind Me Later, Skip for Now
• Tournament journal swap — If this is a tournament match, replaces the standard journal prompt with a tournament-specific daily reflection option
• Export overlay — Copy to clipboard, share via native sharing, or print a match report

For parents logging a match they watched but didn't chart live. Captures the essentials quickly.

• Date, opponent name (with auto-suggest), set scores (add multiple), winner selection
• Duration presets (60m, 90m, 120m, 150m) plus custom input
• Optional tournament selector
• Journal notes text area for quick observations

For the player themselves to log a match — uses different language and prompts geared toward self-reflection.

• Date, opponent, set scores, winner (labeled "Me" / "Opponent" instead of player names)
• "How did the match go?" open text area (wider, more reflective prompt)
• Optional tournament selector

A dual-tab journal interface available after every match. Private by default

• Profile hero — Avatar (initials), player name, age, handedness, backhand type (1H/2H), play style
• Ratings — USTA, UTR, and ITF badges displayed when available, with rating update history tracking
• Career stats grid — Wins, losses, win percentage, total matches at a glance
• Progress Timeline card — Monthly activity snapshot (see Progress Timeline)
• Match Trends chart — Canvas-rendered trend lines with link to full Trends Dashboard
• Strengths & Development Areas — Aggregated from journal data
• Development Goals — Editable list of player goals with add/remove
• Rating History — Chronological list of all rating updates

Each month shows a card with aggregated activity. Paginated at 4 months per page with Newer/Older navigation.

• Matches played — Count with win rate bar
• Total court time — Aggregated match duration with average per match
• Training block connections — Pill badges showing which blocks were active, with linked match counts
• Trend language — Compares against a 3-month rolling average (not just prior month). Requires 3+ qualified months (2+ matches each) before showing. Uses 30% threshold for match count, 25% for duration
• Load awareness line — Subtle, italic text when activity is notably above the rolling baseline (50%+ more matches or 40%+ more court time). Not an alarm — just context

• Block creation — Name, start/end dates, drills list, notes, status (active/completed)
• Match linking — During match setup, tag a match to an active training block
• Training reflection — After a linked match, prompted to note if the training focus showed up: Yes, Somewhat, or Not Yet
• Block-level trends — See how many matches were linked and what percentage showed positive training transfer
• Timeline integration — Training blocks appear as pills in the Progress Timeline monthly cards

• Metric selection — 1st Serve %, Win %, Winners per match, Unforced Errors, Winner/UE Ratio, Break Point Conversion %
• Range selection — Last 5, 10, 20, or 50 matches
• Canvas line chart — Trend line with data points showing metric over selected range
• Comparison grid — Four cards showing current value, all-match average, personal best, and trend direction (up/down/flat)

• Opponent list — All tracked opponents with H2H record, play style, and last match date
• Opponent detail — Full head-to-head stats, match history, play style tag, scouting notes
• Add opponent — Name, play style (Aggressive Baseliner, Counter-Puncher, All-Court, Serve & Volley, Pusher, Big Server, Unknown), handedness, free-text notes
• Auto-population — Opponents are created automatically when you chart a match against a new name
• Scouting notes editor — Detailed notes on opponent patterns, tendencies, and tactical observations
• Match history per opponent — Every match played against this opponent with scores and dates

When matches share the same tournament name (case-insensitive), CourtSide automatically groups them into a tournament view. No extra setup required.

• Tournament summary view — All matches organized by day, with results, round progression, and aggregate stats
• Match-level tournament data — Each match stores tournament name, location, event, draw type, round, and seed
• Entry from anywhere — Access via "View full tournament" link on any tournament match, or from the live summary badge

After the last match of a tournament day, CourtSide swaps the standard journal prompt for a day-level reflection. Private by default

• Journal prompt swap — Instead of the normal post-match journal, shows "How did today feel overall? Anything you want to remember from today?"
• Free-text reflection — Open text area, no ratings or tags. Designed for end-of-day decompression
• Skip option — Always optional
• Visible in tournament summary — Daily reflections appear alongside that day's matches in the full tournament view
• Coach visibility — Private by default. If parent opts in to share reflections, coaches see full content. Otherwise coaches see that a reflection exists but cannot read it

• Tournament list — Upcoming and past tournaments with dates, location, and event info
• Add tournament — Name, location, event/division, draw type, dates
• Calendar overlay — Visual calendar showing tournament dates color-coded
• Tournament detail — Expanded view with match schedule, results, and "Add Match" capability

• Overview tab — Win/loss summary, recent matches, journal nudges for unjournaled matches, upcoming week schedule, training block overview
• Matches tab — Full match history with mini calendar showing match dates as dots
• Profile tab — Quick view of player profile with edit access
• Opponents tab — All opponents with H2H records
• Journal tab — All journal entries as a visual timeline, plus mini calendar

When viewing "All Players," the dashboard shows a family-level overview with combined schedule, activity summary per player, and family week schedule.

• Included players by tier: Core — 2 players, Pro — 2 players, Elite — 3 players. Additional players can be added for $8/month each, billed alongside the subscription
• Player selector chips — Quick switch between players from the dashboard and home screen
• Add player — Create additional player profiles under the same family account. If the account is at its tier limit, prompts to add for $8/mo or upgrade tier
• Per-player charting mode — Each player can have different default charting modes (full charting vs. quick score)
• Scoped data — All data is scoped by player ID in Supabase. Matches, opponents, profiles, blocks, journals are fully independent per player. Row-level security ensures players' data is isolated at the database level
• Account sharing prevention — Players must share a family name or be verified by the account holder. Unusual patterns (e.g., 6 players with different last names and different coaches) can be flagged for review

• Week grid — 7-column display with events per day, navigable by week with a "Today" button
• Calendar popup — Toggle a full month view to jump to any date
• Add session — Type (match, lesson, practice, fitness, tournament), date/time, duration, notes
• Event detail — Tap any scheduled event for full details with edit capability
• Color-coded event types — Visual distinction between matches, lessons, practice, etc.
• Player upcoming week — Integrated into the dashboard overview for quick at-a-glance view

• Add expense — Amount, category (Lessons, Tournament Fees, Equipment, Travel, Other), description, date
• Category pills — Color-coded filter buttons to view by category
• Expense list — Chronological list with amount, category, description, and date

• Session type picker — Private Lesson, Group Lesson, Academy Day, Hitting Session, Practice Sets
• Date, Coach Name (conditional on session type), Ball Machine toggle
• "How did it go?" — Free-text main reflection
• Duration — Presets (30m–120m) plus custom
• Expandable detail section — Overall Rating (1–10), technique tags (Forehand Topspin, Kick Serve, Split Step, Point Construction, etc.), "What clicked today" strength tags, "What to work on" development tags

• Workout type picker — Strength, Speed, Cardio, Boxing, CrossFit, Yoga (with icons)
• Duration — Presets (15m–90m) plus custom
• Built-in timer — Fitness timer overlay with start/stop/reset
• RPE scale — Rate of Perceived Exertion 1–10 (optional)
• Notes — Free text for exercises, sets, reps, how it felt

• Log court time by type: match play, structured practice, private lessons, group training, free play/hitting
• Session details: date/time, duration, court location, court surface, conditions notes
• Auto-capture from charted matches — match duration is logged automatically when a match is charted, no double entry
• Training block sessions auto-link — court time logged during an active training block associates with that block
• Quick-log option for parents: tap, pick type, enter duration. Under 10 seconds to log a session

• Lifetime court hours displayed as a headline stat on the player profile — total hours accumulated since the player started tracking
• Breakdown by category: match hours, practice hours, lesson hours, free play hours — shown as a stacked bar or donut chart
• Rolling averages: weekly hours (current vs. 4-week avg), monthly hours, seasonal totals. Coaches can see at a glance whether a player is putting in consistent time or trending down
• Milestone markers inspired by the 10,000-hour rule of deliberate practice:
  — 250 hours: Foundations (learning the game)
  — 1,000 hours: Committed (building competitive habits)
  — 2,500 hours: Dedicated (serious competitive junior)
  — 5,000 hours: Advanced (high-level competitive development)
  — 7,500 hours: Elite pathway
  — 10,000 hours: Mastery level
• Milestone achievements are celebrated in-app with a visual badge. Parents and coaches can see the player's current milestone level and progress toward the next one
• Pace projection: "At your current weekly average of 12 hrs/week, you'll reach 2,500 hours in approximately 8 months"

• Practice-to-match ratio: How many practice hours per competitive match hour? Coaches use this to assess whether a player is getting enough match experience relative to training
• Load awareness integration: Court time feeds into the existing load tracking system — flags when weekly hours spike beyond the player's baseline (injury risk) or drop below it (motivation signal)
• Seasonal trends: Compare court time across seasons, tournament periods, and off-season. Helps coaches and families plan training cycles
• Court time vs. performance correlation: Overlay court hours with match performance trends. Shows whether increased training time is translating to competitive improvement
• Coach dashboard view: Coaches see aggregated court time for all players in their program — who's putting in the hours, who's dropping off, and how the group compares

• Parent view: Total hours, breakdown by type, current milestone, pace projection. Gives parents a grounding perspective — "my child has 1,400 hours of deliberate practice" is a more meaningful measure than last weekend's score
• Coach view: Filtered court time data visible on the coach dashboard by default (not private). Coaches can see total hours, weekly averages, and session type breakdown for each player
• Multi-player support: Families with multiple players see individual court time for each child on the family dashboard
• Follows the standard CourtSide privacy model — court time data is visible to the player's connected coach. Journal and emotional data remain private unless shared

• Add rackets — Brand, model, head size, weight, balance, grip size. Support multiple rackets per player (most competitive juniors carry 2–4)
• Active/retired status — Mark rackets as active or retired. Keep history of all rackets used over the player's career
• Primary racket — Set one as default for match logging. Auto-tags to new matches unless changed

• Restring entry — Date strung, string type (main/cross if hybrid), tension (mains/crosses), stringer name or location
• String age tracking — Auto-calculates days since last restring and estimated playing hours on current strings (from court time data)
• Post-play feedback — After matches, optional quick rating: "How did the strings feel?" (1–5 scale) with optional notes. Captures feedback like "felt dead after 3rd set," "great spin today," "too tight first few games"
• Restring reminders — Optional notification when strings pass a set age or hour threshold (e.g., "15 hours on current strings — time to restring?")
• String history timeline — See every restring with the tension, string type, and how many hours/matches were played on each setup. Over time, patterns emerge: "VS Touch at 52 lbs lasted 12 hours and had the best feel ratings"

• Shoes — Brand, model, surface type (hard court, clay, all-court), date purchased, estimated usage. Shoe wear tracking helps prevent injury from worn-out shoes
• Other gear — Bags, grips, dampeners, wristbands, hats. Simple inventory with purchase date and notes
• Expense integration — Gear purchases can optionally link to expense tracker entries. Total gear spend per season calculated automatically

• String setup vs. match performance — Correlate string type and tension with win rate, unforced error rate, and player feel ratings. "You've played 23 matches on RPM Blast at 50 lbs (62% win rate) vs. 15 matches on VS Touch at 52 lbs (73% win rate)"
• Racket performance comparison — If a player switches between rackets, compare performance metrics across each
• Coach visibility — Gear setup visible on coach dashboard. Coaches can see what a player is playing with and how it's performing — helpful for making equipment recommendations

• Auto-capture (with permission) — If location services are enabled, auto-pull weather data at match time: temperature, humidity, wind speed, conditions (sunny/cloudy/rain). Pulled from a weather API based on court GPS coordinates
• Manual entry fallback — Quick-select pills: Hot, Warm, Cool, Cold | Humid, Dry | Windy, Calm | Indoor, Outdoor | Sunny, Overcast, Rain
• Court surface — Hard court, clay, grass, indoor hard, carpet. Tagged per match (auto-filled if venue has a default)
• Court type — Outdoor, indoor, covered. Relevant for wind and heat conditions
• Altitude — Auto-captured with location. Relevant for tournaments at elevation (balls fly differently)

• Performance by temperature — Win rate, effort ratings, and energy levels across temperature ranges. "Your player is 71% in cool conditions vs. 48% in extreme heat"
• Wind impact — Performance and unforced error rates in windy vs. calm conditions. Helps identify players who struggle with wind and need match-play practice in it
• Surface breakdown — Win rate and play style differences across hard court vs. clay vs. indoor. Critical for tournament planning and training priorities
• Indoor vs. outdoor — Some juniors perform dramatically different indoors vs. out. Data over 20+ matches makes this visible
• Coach dashboard view — Coaches see weather/surface performance trends for all players. Helps with tournament recommendations ("this player should play more clay events") and training focus

• Pre-match meal — Quick log: what they ate, how long before the match, and a simple "felt good / felt heavy / felt low energy" tag afterward
• During-match hydration — Water, sports drink, or other. Estimated amount (sips/bottles). Changeover snacks if applicable (banana, energy bar, gels)
• Quick-log design — This is NOT a nutrition tracking app. No calories, no macros, no portion sizes. Just "what did they have and how did they feel." Takes under 15 seconds to log
• Favorites — Save common pre-match meals and drinks as presets. "Tournament breakfast" = tap once to log the usual routine

• Energy correlation — Over time, correlate pre-match nutrition with 3rd set performance, effort ratings, and energy levels. "Matches where they ate 2+ hours before had 23% higher effort ratings in the final set"
• Hydration patterns — Flag matches where hydration was low and performance dropped in later sets. Especially relevant in heat (ties into weather data)
• Tournament day patterns — Multi-match tournament days are where nutrition matters most. Track what worked across back-to-back matches vs. what led to energy crashes
• No prescriptive advice — CourtSide shows patterns but does NOT provide nutritional recommendations. We are not dietitians. The data helps families and coaches notice what works for their specific player

• Add entry — Coach name, type (categorized with pill buttons), "What did the coach say?" free text
• Log list — Chronological entries, filterable by type

• Editable routine steps — warmup sequence, mental preparation, pre-match checklist
• Each item can be marked complete on match day
• Customizable with add/remove/reorder

• Goal creation — Description, target metric, target value, timeline
• Metric selection pills — Choose which stat to track
• Streak visualization — Current streak count, progress indicator
• Goal list — All active goals with streak status

• Chat interface — Scrollable message conversation with "Ask Rally about tennis..." input
• Mode selector — Different AI response modes (match analysis, tournament prep, general tennis)
• Quick replies — Suggested follow-up questions after responses
• Context-aware — Responds to keywords like "timeline," "tournament mode," "trends" with relevant product information and data-driven insights from the player's own data
• Clear history — Reset conversation

Rally is purpose-built for tennis families. It is not a general-purpose AI assistant. Every response is filtered through topic boundaries to keep the experience safe, relevant, and focused.

• Collapsible section within the post-match journal
• Generates customized reflection prompts based on match statistics
• Analyzes patterns from previous matches to surface relevant observations
• Questions, not conclusions. AI Reflect asks "Your first serve percentage dropped 15% in the third set — what was happening?" It does not say "Your serve needs work." The parent and player draw their own conclusions
• Same topic guardrails as Rally. AI Reflect only generates tennis-related, process-oriented prompts. No medical, mental health, or off-topic content
• Optional — reflection is always available without AI
• Limited to 5 AI-assisted reflections per month (Elite tier). Encourages thoughtful use, not dependence

• Pattern analysis — Statistical patterns from previous matches against this opponent
• Tactical checklist — Generated strategy points to consider
• H2H context — Previous results and journal reflections for reference
• Notes and reminders — Custom prep notes

• Record button — Live capture from device camera (iPhone, GoPro). Short clips, not full matches — 10-30 seconds of a specific stroke or movement
• Upload — Add existing video from device (practice footage, lesson clips, tournament warm-ups)
• Filter tabs — All, Matches, Practice, Analysis
• Video grid — Thumbnail view with title, duration, and type icon
• Metadata — Title, description, type, date, associated match/session

• Slow-motion playback — 1x, 0.5x, 0.25x speed control. Slow down a forehand to see racket path, contact point, and follow-through
• Frame-by-frame — Step forward/back one frame at a time. Freeze the exact moment of contact or the top of the serve toss
• Drawing tools — Pen, line, arrow, circle with color palette (red, cyan, yellow, green, white) and undo/clear. Annotate body position, racket angle, foot placement
• Side-by-side comparison — Place your player's current clip next to a previous version of the same stroke. Film the forehand today, film it again in 3 months, see the progress. Track how form evolves over time
• Voice-over recording — Record audio commentary over video. A coach can annotate a clip with verbal cues the player listens to before practice
• Annotation canvas — Transparent overlay for drawing on top of paused or playing video
• Share with coach — Export annotated video to coach dashboard or share externally. Coach can add their own annotations and voice-over

• Dedicated coach login — Email magic link + SMS MFA, same security model as parent accounts. Coach role is distinct from parent role in the auth system
• Single sign-on across mobile and web — Same coach account works on the mobile app and the web portal. Data syncs across both
• Offline capability — Core features (player lookup, recent data, video capture) work offline. Syncs when connection returns

• Quick video capture — Film a stroke or rally directly in the app during a lesson. Tap to start, tap to stop. Optimized for one-handed use while coaching
• Slow-motion playback — 0.25x, 0.5x, 0.75x speeds. Frame-by-frame scrubbing for precise technique review
• On-screen annotation — Draw on frames: circle body position, trace racket path, mark contact point. Freehand and straight-line tools with color options
• Voice-over coaching notes — Record audio commentary over a video clip. "Watch your front shoulder here — you're opening up too early." Attaches to the video for the family to review at home
• Side-by-side comparison — Pull up a video from 3 months ago and compare with today's footage. Show the player and parent the progress in real time between reps
• Send to family — One tap sends the annotated video to the player's family account. Appears in their Video Library with coach annotations and notes attached
• Coach video library — All videos captured by this coach, organized by player and date. Searchable by player name, stroke type, or date range

• Player roster — All connected players in a scrollable list. Search by name. Last lesson date, next upcoming match, and current training block shown at a glance
• Pre-lesson summary — Tap a player to see: recent match results, current training block focus, gear setup (racket, string, tension), court time this week, and any shared journal entries. Everything a coach needs before a lesson starts
• Performance overview — Win/loss record, rolling trends, match count, effort averages. Same data as the web portal, optimized for a phone screen
• Opponent H2H — Pull up head-to-head records before a lesson to prepare tactical work. "You're playing Sarah next weekend — let's look at what happened last time"
• Equipment & conditions view — See what racket/string setup the player is using, their weather performance trends, and recent string feel ratings. Inform equipment recommendations during lessons

• Start/end lesson — Tap to start a lesson timer. Auto-logs duration to the player's court time tracker. No double-entry for the family
• Session notes — Quick structured entry: what was worked on (serve, return, net play, movement, mental, match play), key takeaways, homework for next time. Sends automatically to the family's Coach Log
• Focus tags — Tag the session to the player's active training block. If the player is in a "serve development" block, the lesson links to it automatically
• Drill library (Coming Soon) — Save and reuse common drills. Share drill descriptions with families so they can practice between lessons

• Match results — Push notification when a connected player completes a match. Quick view of score and result without opening the app
• Shared journals — Notification when a family shares a journal or reflection with the coach. Read it on the phone between lessons
• Training block updates — Notification when a family starts or completes a training block that involves the coach
• Court time alerts — Optional: get notified if a player's weekly court time drops below their baseline. Catch disengagement early

• Coach login — Email + magic link, scoped to coach role. Coaches create their own account on the web portal. Families link their player to a coach via invite code or email
• Roster view — All players who have granted this coach access, organized by family. Shows last match date, recent results, and sharing level (what categories the family has opted in to share)
• Player summary cards — At-a-glance view per player: win/loss record, current training block, recent trend direction, journal count. Click through to full detail
• Trends comparison — View trend lines across multiple players side-by-side. Useful for coaches tracking development across their roster
• Opponent H2H — Full head-to-head records for any player. Searchable by opponent name across the coach's roster
• Shared journals & reflections — If a family has opted in, view match journals and tournament reflections in a timeline. Read-only — coaches cannot edit family data
• Annotated video review — View shared video clips with annotations. Add coach annotations and voice-over to send back to the family

• Login — Same Supabase auth as mobile (magic link, Google, Apple). Same account, same data
• Match history — Full match list with filters (date range, opponent, tournament, win/loss). Wider layout shows more data per row than mobile
• Match detail — Full stats breakdown, journal entries, and match notes on one screen without scrolling
• Trends dashboard — Larger chart canvas for trend visualization. Side-by-side metric comparison. Date range picker
• Journal review — Scrollable timeline of all journals. Searchable by keyword, date, or tournament. Better for reviewing patterns across months of reflections
• Player profile — View and edit player details, goals, and rating history
• Coach sharing settings — Manage per-coach, per-category sharing from the web. See a preview of exactly what each coach can see
• Billing management — Subscription status, plan changes, payment method, invoices. Links to Stripe customer portal

Academies track what happens on their courts — technique progression, tactical development, physical benchmarks. CourtSide tracks what the academy can't see: how a player processes a loss on the car ride home, whether they're still having fun after a hard training week, or how a parent observes their child's body language shift between the first and third set.

CourtSide doesn't replace academy systems. It gives the family a structured way to hold their side of the development story — the emotional, behavioral, and motivational patterns that shape a junior player's long-term trajectory just as much as their forehand mechanics.

• Training blocks map to academy periods. When an academy runs a 4-week serve development cycle, the parent creates a matching training block in CourtSide and tags tournament matches during that window. After each match, they note whether the training focus showed up in competition — creating a feedback loop the coach can reference
• Coach access provides shared visibility. The academy coach logs in via the web portal (email magic link + MFA) or mobile coach view and sees match results, stats, trends, opponent H2H, and player goals by default. Families can opt in to share journals, reflections, and emotional ratings with their coach — giving coaches a fuller picture when the family is ready
• Tournament journals capture what coaches miss. Coaches often aren't at every tournament. CourtSide's daily reflections and match journals give the family a record of what happened — not just the scores, but the emotional arc of a tournament weekend. Families who share journals with their coach give them that context automatically; others share it in conversation
• Opponent scouting builds institutional knowledge. Over a season, the family builds detailed H2H records against regional opponents. In junior tennis, kids play the same competitors repeatedly — that history has real tactical value for pre-match preparation and coach discussions

The single most important design decision in CourtSide is that reflections start private. A 13-year-old won't write "I didn't want to be there today" in a journal they know their academy coach can read. A parent won't note "he looked defeated after the second set" if it automatically becomes part of a coaching evaluation.

But many families trust their coach deeply. They already share physical notebooks and post-tournament recaps. CourtSide respects that relationship: parents can opt in to share specific categories — journals, reflections, effort/compete/fun ratings — with their coach. Per-coach control means a family with a private lesson coach and an academy coach can share different things with each one.

The default protects honesty. The choice respects the relationship. Both make the data better.

• MFA required on every login. SMS verification via the parent's registered phone number. Not optional. The app handles minors' images and personal data — single-factor auth is not acceptable
• Biometric quick unlock — After MFA login, the session stays active on the device. Face ID or fingerprint unlocks the local session without re-entering MFA. Session expires after 30 days of inactivity
• New device detection — Full re-authentication (magic link or social + SMS MFA) required on any unrecognized device. No session transfer between devices without MFA
• Remote session kill — Parent can revoke all active sessions from settings. If a phone is lost or stolen, the account is locked within seconds
• Coach access is scoped and auditable. Coaches only see what parents have opted in to share. Every coach access event is logged. Parents can see when and what their coach viewed

• Encrypted at rest. All photos and video stored in Supabase Storage are encrypted at rest (AES-256). No unencrypted media on the server
• Encrypted in transit. All data transfers use TLS 1.2+. Media uploads and downloads are encrypted end-to-end between the device and Supabase
• Private storage buckets. Media files are stored in private Supabase Storage buckets. No public URLs. Access requires authenticated session + row-level security check
• Signed URLs for playback. When a user or coach views a video, a short-lived signed URL is generated (expires in minutes, not hours). No persistent media links that could be shared or leaked
• No third-party media processing. Video playback (slow-mo, annotation) runs on-device. Video files are not sent to external services for processing. The raw footage stays in Supabase Storage and on the user's device
• Local cache management. Cached media on the device is stored in the app's sandboxed storage. Clearing the app or logging out removes all cached media from the device

The Children's Online Privacy Protection Act (COPPA) applies because CourtSide collects personal data from children under 13. The parent account model helps — the parent is always the account holder and data controller — but the legal requirements are specific.

• Verifiable parental consent. The parent creates the account and adds child players. The parent's authenticated identity (email + SMS MFA) serves as verifiable parental consent for data collection. No child can create their own account
• No direct data collection from children. All data entry happens through the parent's account. Even the "Player Reflection" tab in the journal is entered under the parent's session — the parent decides whether their child uses the device to fill it in
• Data minimization. Only collect what's needed. Player profiles require name, age, and handedness. Everything else (ratings, photos, play style) is optional
• Parental right to review and delete. Parents can view all data stored about their child, export it, and permanently delete it at any time from settings. Deletion is real — database rows and media files are removed, not soft-deleted
• No behavioral advertising. CourtSide does not serve ads, does not sell data, and does not use children's data for profiling or advertising. Revenue comes from subscriptions only
• No social features for minors. Activity feed, player discovery, and contacts are parent-managed features. Children do not have their own social profiles, friend lists, or messaging
• Privacy policy disclosure. A COPPA-compliant privacy policy must be prominently accessible from the app and website. It must clearly state what data is collected, how it's used, who it's shared with (coaches, only with consent), and how to request deletion

• Row-level security (RLS). Every database query is filtered by Supabase RLS policies. A family can only access their own data. A coach can only access data for players whose families have granted access. There is no admin backdoor for browsing user data
• Audit logging. Coach access events, data exports, account changes, and sharing permission changes are logged with timestamps. Parents can review the audit log from settings
• Data retention. Active accounts retain all data indefinitely. Cancelled accounts retain data for 90 days (in case of re-subscription), then permanently delete. Parents can request immediate deletion at any time
• Backup & recovery. Supabase provides automated daily backups. Point-in-time recovery available. Backups are encrypted
• No data sharing with third parties. CourtSide does not share, sell, or license user data to any third party. The only external service with access to user data is Supabase (infrastructure provider) and Stripe (billing only — no player data)
• Incident response. If a data breach occurs, affected families are notified within 72 hours per COPPA and state breach notification laws. Clear process for containment, investigation, and remediation

• Activity stream from team/academy connected players
• Recent match results, achievements, and milestones
• Post cards with like/comment engagement

• Search and browse contacts with role/relationship labels
• Add contacts with name, role (Coach, Parent, Friend, Teammate), phone, email, notes
• Contact detail view with associated matches/events

• Filter by criteria (level, location, age)
• Player cards with name, rating, play style, location
• Tap to view player profile with achievements

• Category filter chips for browsing by topic
• Article list with search capability
• Full article detail view with related articles
• Content covering technique, tactics, mental game, and training

• Create programs — Name, description, multi-day structure with exercises per day
• Program day detail — Instructions, warmup, exercise list with sets/reps/descriptions
• Browse programs — View available programs with filtering
• Publish to store — Share programs with the community

• Category filter tabs for browsing
• Program cards in grid layout with title, description, and details
• Preview mode with full program details before adding

• Calm settings screen — Configure changeover cue preferences and breathing exercise parameters
• Calm prompt overlay — Full-screen breathing animation triggered during changeovers: animated circle grows on inhale, shrinks on exhale, with cycle indicator dots
• Changeover cue types — Different cue styles configurable by the parent
• Dismissible — Always optional, never blocks match charting

• Notification list with unread indicators, timestamps, and icons
• Filter tabs by notification type
• "Mark all read" bulk action
• Banner-style notifications for key events (journal reminders, streaks, etc.)

• Pre-match checklist integration (from routines)
• Current tournament/match info display
• Quick match start button
• Warm-up reminders and prep notes

• Account info — Name, email, PIN management
• Coach access code — Set or change the PIN that coaches use to access the family's data
• Theme toggle — Dark/light mode (persistent preference)
• Data management — View storage usage, clear local cache, manage cloud data. Export all data (Elite tier)
• Coach sharing controls — Per-category toggles to share journals, reflections, ratings, etc. with each coach. Per-coach control for families with multiple coaches
• Coach preview — See exactly what coaches see from the parent view (reflects current sharing settings)
• Coach visibility info — Detailed breakdown of default private vs. always shared data, plus current opt-in selections
• Apple Watch Awareness — Coming Soon — Interest capture card for wearable integration
• Log out — Returns to login screen

Build and reuse training sessions. Share focus areas with parents. Connect academy programming to match performance tracking.

• Visible as a placeholder card on the Coach Dashboard
• "I'm interested" button captures coach interest for future development prioritization

Optional heart rate awareness during matches. Not heart rate management — awareness. Surface data from wearables as additional context alongside match stats and reflections.

• Visible as a placeholder card in Account Settings
• "I'm interested" button captures user interest for future development prioritization