10K Time Predictor

Predict your 10K (6.2 mi) finish time based on your 5K or training run pacing.

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Predicted Finish Times

5K Prediction -
10K Prediction -
Half Marathon Prediction -
Marathon Prediction -

*Based on Peter Riegel's endurance formula.

The 10K Race Prediction

Moving from a 5K to a 10K requires a shift in your energy systems, bleeding from high-lactate threshold running into endurance steady-state pushing. The 10K predictor allows you to approximate the slow down required to double your total race distance.

Our predictor utilizes the mathematical standard Riegel curve. By entering a recent 5K race pace where you performed with all out, 100% effort, the system will accurately adjust the pacing to find a realistic 10K potential finish time.

To print out pacing wristbands or understand what split speed you need per kilometer to reach your predicted 10K time, visit the Running Pace Calculator & Split Generator.

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