Track Interval Timer

A web-based interval timer for track workouts with Google Sheets integration.

Features

• Configurable Intervals: 800m, 400m, 200m, 100m with customizable reps
• Automatic Rest Periods: 1:1 work-to-rest ratio
• Google Sheets Integration: Automatic workout logging to your personal spreadsheet
• Performance Analytics: Speed per 100m tracking and session summaries
• Multi-User Support: Each user connects their own Google account

Live Demo

https://tylerl.github.io/timer

Usage

1. Visit the app URL
2. Configure your intervals
3. (Optional) Connect Google account for data logging
4. Start workout!

Setup Google Integration

To enable Google Sheets integration:

1. Go to Google Cloud Console
2. Create a new project or select existing
3. Enable APIs: Google Sheets API + Google Drive API
4. Create credentials → OAuth 2.0 Client ID → Web application
5. Add authorized JavaScript origins:
   • http://localhost:8000 (for local testing)
   • https://tylerl.github.io (for production)
6. Copy Client ID and API Key
7. Update the credentials in index.html

Privacy

• Your workout data is saved directly to YOUR Google Sheets
• No backend server - all data stays between you and Google
• Revoke access anytime via Google Account settings

Tech Stack

• Vanilla JavaScript (no framework dependencies)
• Google Sheets API for data storage
• Chart.js for analytics visualization
• Google Identity Services for OAuth

Local Development

# Clone the repository
git clone https://github.com/tylerl/timer.git
cd timer

# Start local server
python3 -m http.server 8000
# Or use Node.js
npx http-server -p 8000

# Open http://localhost:8000

Deployment

This is a static site that can be deployed anywhere:

• GitHub Pages (current)
• Vercel
• Netlify
• Any static hosting service

Contributing

Pull requests welcome! Please test your changes thoroughly.

License

MIT License - feel free to use for your own training!

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Built by Tyler Lacroix for track workout tracking