Race Time Predictor
Estimate finish times across distances from one recent result.
Predicted times (Riegel)
| Distance | Time | Pace |
|---|---|---|
| 5K | 19:11 | 3:50 /km |
| 10K | 40:00 | 4:00 /km |
| Half Marathon | 1:28:15 | 4:11 /km |
| Marathon | 3:04:00 | 4:22 /km |
Predictions use Riegel's formula with a 1.06 fatigue exponent. They assume comparable training and conditions and tend to be optimistic for much longer distances.