A comprehensive Mario Kart race tracking application that records race results, calculates detailed statistics, tracks achievements, and provides in-depth performance analysis for up to 4 players. All data is stored locally in your browser, and syncs to your account when you sign in.
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6 Different Views
Navigate between Achievements, Stats, H2H, Analysis, Activity, and Trends tabs. Each provides insights into your racing performance.
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5 Achievement Categories
Win Streak (consecutive 1st), Hot Streak (consecutive podiums), Clutch Master (better than average), Momentum Builder (improving positions), Perfect Day (all good finishes in a day).
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Auto-Save & Backup
All data auto-saves to local storage. Auto-backup every 10 minutes. Export/import JSON files for manual backups. Full undo/redo history.
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Multiple Input Methods
Sidebar Add Race form, direct number entry, or the position picker dropdown.
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Advanced Analytics
Position heat maps, recent streak visualization, sweet spot analysis, performance trends chart, activity calendar, and H2H statistics.
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Customization
Consistent theme styling, custom player icons/emojis, configurable player count (1-4, optimized for 3), and date filtering.
🚀 Quick Start Guide
Configure Players: Open sidebar (☰) → Click 👤 Manage Players → Set 1-4 player names and feel free picking icons
Add First Race: Enter positions for each player → Click "🏁 Add Race"
Explore Views: Click tabs at top - Achievements shows progress, Stats compares players, H2H shows matchups, etc.
Filter by Date: Use sidebar date controls - All Time, Today, Last 7/30 days, or custom date ranges
Backup Data: 📤 Export to save JSON file. 📥 Import a JSON file. Auto-backup runs every 10 minutes
📊 Visualization Guide
🏆 Achievements
Track milestones and streaks across 5 categories:
🏅 Win Streak: Consecutive first place finishes
🔥 Hot Streak: Consecutive podium finishes
💥 Clutch Master: Consecutive races finishing better than average
🚀 Momentum Builder: Consecutive races with improving positions
📅 Perfect Day: All races in a day were good finishes
🌡️ Position Heat Map
Shows frequency of finishing positions in ranges
Position ranges vary by game mode
📈 Recent Streak
Your last 10 race positions at a glance with gradient colors
🎯 Sweet Spots
Visualizes frequency for each specific position:
Each bar represents one position
Brighter colors = more frequent finishes
Helps identify your most common positions
⚠️ Disclaimers
Data Storage: All data is saved locally in your browser's local storage. This means:
Data persists between sessions on the same device/browser
Clearing browser data will delete all local race history
Sign in to sync your data across devices; without signing in, data stays on this device only
Player Tracking: Players are saved based on their position slot (e.g., Player 1, Player 2) and not by name. This means that Player 1's results will always appear in the leftmost position, even if the name changes later. Player statistics and positions are tied to their assigned number, not their current name label. I intend to improve this in the future, but for now this works for my usage.
🔧 Technical Details
Data Format: Race data stored as JSON with date, timestamp, and player positions
Browser Storage: Uses local storage
Auto-Backup: Runs every 10 minutes, includes all races and player configurations
Validation: Real-time input validation, duplicate position detection, range checking
No Server Required: Fully client-side application, no internet needed after loading