Race Time Predictor
Use this race time predictor to project a race time from a known running performance. Enter known race distance and time, plus the target distance and review an estimated time for the target distance.
Predicted time
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Predicted pace —
Known pace —
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How it works
T₂ = T₁ × (D₂ ÷ D₁)^1.06 (Riegel)How to use the Race Time Predictor
Start by entering known race distance and time, plus the target distance. Keep the units consistent and check that each value belongs to the same question.
The result gives an estimated time for the target distance. Performance depends on training, course, weather and pacing. Use it as a guide and check any instructions, rules or professional advice that apply.
Frequently Asked Questions
What does this race time predictor calculate?
It gives an estimated time for the target distance. Performance depends on training, course, weather and pacing.
What information should I enter?
Enter known race distance and time, plus the target distance. Use the same units throughout so the result is easier to understand.
Can it predict every race accurately?
No. It gives a comparison estimate based on one performance.