Enter a recent race time and distance — we'll predict your equivalent times
across all standard distances using Pete Riegel's formula.
About this prediction
Uses Pete Riegel's formula: T₂ = T₁ × (D₂ ÷ D₁)1.06
— the gold standard for race time prediction, used by coaches worldwide.
Predictions assume equivalent fitness and racing conditions.
Actual times may vary based on terrain, weather, and training.
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