🏃‍♂️ Race Time Predictor

Race Time Predictor is a lightweight web app that estimates your potential finish times across common race distances using your past performances and the Riegel formula. It's designed for runners who want to set smarter goals and track performance trends over time.

📌 Features

• Simple Interface – Clean, intuitive layout for quick and easy use.
• Multiple Entries Per Distance – Input up to 3 times per distance; the tool combines them.
• Date-Weighted Predictions – More recent results have higher impact.
• Real-Time Calculations – Predictions are generated instantly.
• Sample Data Button – Populate with example data to try it out quickly.

📈 How It Works

The predictor uses the Riegel formula, a widely used method for estimating endurance performance:

T₂ = T₁ × (D₂ / D₁)^1.06

Where:

• T₁ = time you achieved for distance D₁
• T₂ = predicted time for distance D₂
• The exponent 1.06 accounts for endurance drop-off over distance

The app averages predictions from your valid entries, applying higher weight to more recent times based on their date.

🚀 Try It Now

🔗 Live App: alexgasconn.github.io/RaceTimePredictor

🧪 How to Use

1. Enter Your Best Times
   Fill in times for the supported distances (Mile, 5K, 10K, Half Marathon, Marathon, or custom). Use hh:mm:ss format. Optionally include the date to improve accuracy.

2. Get Predictions
   Click "Predict Times" to calculate expected race times across distances.

3. Try with Sample Data
   Click "Sample Data" to auto-fill the form with example results and see how it works.

4. Analyze Output
   The tool will show predicted times, pace per km, and a confidence score for each distance.

🗂️ Project Structure

File	Purpose
index.html	The main HTML page
script.js	JavaScript logic for inputs and output
style.css	(Optional) CSS for styling (currently inline)

🌍 Deployment

The app is 100% static and deployed using GitHub Pages.
Changes pushed to main are immediately live at the project URL.

🤝 Contributing

Feel free to open issues or submit pull requests to improve functionality or UI/UX.
Ideas, refactors, and clean code are welcome!

📄 License

Licensed under the MIT License.

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Train smarter. Set realistic goals. Run with confidence.
Thanks for using Race Time Predictor! 🏁