➷ NewTon DC Tournament Manager provides a clean, professional interface with offline-first design for reliable double-elimination darts tournaments. It runs entirely in your browser — no server, database, Internet connection, or installation required.
🔒 Total Privacy: Your tournament data lives in your browser's localStorage, period. We have a demo site, but even there your data never leaves your device. Complete privacy by architecture, not by policy.
Download for offline use or self-host with Docker.
All data, player names, tournaments, and config stay in your browser - nothing is stored on the server or shared with anyone else.
Player Registration, Saved Players, and Dynamic Help:
Tournament Setup:
16-player Tournament Bracket Showing "Match Card Magic Zoom" and Status Bar:
Match Controls with Referee Suggestions and Match/Referee Conflict Detection:
Celebration:
Configuration Page:
Developer Console:
- Download the latest official release (Run
git cloneor download ZIP for the latest beta) - Open: Launch
tournament.htmlin your browser - Configure: Set up your club branding and point system
- Create: Set up a new tournament with name and date
- Register: Add players and mark payment status
- Generate: Create the tournament bracket
- Run: Manage matches, assign lanes, and track results in real-time
No installation, no servers, no complexity — just pure tournament management.
Want to host NewTon Tournament Manager on your own server? Docker makes it effortless.
Get running in under 2 minutes:
# Download docker-compose.yml
curl -O https://raw.githubusercontent.com/skrodahl/NewTon/main/docker/docker-compose.yml
# Start the container
docker compose up -d
# Access at http://localhost:8080What's Included:
- ✅ Lightweight Alpine container (~60MB)
- ✅ PHP REST API for tournament sharing
- ✅ nginx + PHP-FPM for optimal performance
- ✅ Multi-architecture support (Intel/AMD + Apple Silicon/Raspberry Pi)
- ✅ Persistent storage for tournaments
- ✅ Custom logo and payment QR code support
Documentation:
- Quick Start Guide - Get running in 2 minutes
- Multiple Tournaments: Create, save, and load with automatic browser storage
- Import/Export: JSON-based backup and sharing between computers
- Tournament Protection: Completed tournaments loaded from file are read-only to protect data integrity
- Tournament History: Complete match records with lane and referee assignments
- Crash Resilient: Automatic saving prevents data loss
- Optional Server Features: Sharing completed tournaments if hosted on a webserver with PHP, using REST API
- Professional Structure: Frontside/backside brackets for 8, 16, and 32 players
- Smart Generation: Prevents two walkovers from meeting in first round
- Fair Draw: Byes randomly distributed to prevent unfair advantages and minimize walkover chains
- Interactive Visualization: Zoom, pan, click-to-select winners with complete progression lines and placement indicators
- Match Card Magic Zoom: Auto-zoom on individual matches when zoomed out too far to read and control the matches
- Automatic Advancement: Walkovers advance real players intelligently
- Undo: Reverse recent match results (staged undo prevents accidentally clearing large portions of the bracket)
- Contextual Status: Hover over tournament matches to show status, tournament progression, and undo
Intuitive traffic light system for instant priority assessment:
- 🔴 Orange/Red = "DO THIS NOW" (LIVE matches, current focus)
- 🟡 Yellow = "READY FOR ACTION" (can be started, next up)
- 🟢 Green = "COMPLETED" (done and archived)
- ⚪ White/Gray = "NOT READY YET" (pending, no action possible)
- Centralized Control: Manage entire tournament from Match Controls interface
- Clear Progression: Each match shows exactly where winners and losers advance ("Leads to...")
- Lane Assignment: Assign matches to dartboard lanes (1-20 with exclusions, configurable)
- Referee System: Select referees with conflict prevention
- Real-time Updates: Live standings and bracket progression
- Player List Registry: Maintain a persistent list of regular players for consistency across tournaments
- Alphabetically sorted for easy scanning
- Quick-add players to new tournaments
- Import/export with tournament data
- Registration: Add players and track payment status
- Comprehensive Stats: Short legs, high outs, tons, 180s with configurable points
- Live Rankings: Real-time 1st through 32nd place calculation
- Export Results: CSV and JSON export with full tournament history
- Custom Branding: Add club logo, favicon, and customize title
- Flexible Scoring: Configurable points for participation, placements, and achievements
- Match Formats: Best-of legs for rounds, semifinals, and finals
- UI Preferences: Confirmation dialogs and interface behavior
Architecture:
- Pure HTML5, CSS3, and JavaScript (ES6+) — zero dependencies
- Browser LocalStorage for offline persistence
- Hardcoded progression tables for bulletproof match advancement
- Transaction-based history system with complete undo functionality
Browser Compatibility:
- Chrome 80+, Firefox 75+, Safari 13+, Edge 80+
- Requires JavaScript and LocalStorage support
- Automatic Saving: All changes saved immediately to browser storage
- Import/Export: JSON files for backup and computer-to-computer transfers
- Privacy: Complete local storage, no cloud or external data sharing
- Undo System: Reverse recent match results with transaction history
- Developer Console: Debug, view tournament health, transaction log management
- Tournament Organizers: Professional dart tournament management
- Dart Clubs: Regular tournament nights and member ranking systems
- Event Management: Pub tournaments, corporate events, charity fundraisers
Common Issues:
- Ensure JavaScript is enabled in your browser
- Clear old tournaments if storage becomes full
- Close other browser tabs for optimal performance with large tournaments
Data Recovery:
- Use the undo system to reverse recent changes
- Import from exported JSON backup files
- Reset tournament to bracket generation if needed
Created by Håvard Skrödahl NewTon DC Malmö
License: Open source project for dart tournament management