Race Predictor – Running Time Calculator

Predict race times using Riegel formula

Note: T2 = T1 × (D2/D1)^1.06. Predict longer race from shorter race time.

Known Race

Known Distance (km)

Known Time (min)

Target Distance (km)

⚠️ For educational and training purposes only. Consult a coach, physician, or certified trainer before making training or health decisions.

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