A 5K or half in. Your 10K out.
Type any recent race result. We project your 10K finish time using the Riegel formula. Useful for setting realistic 10K goals before a race.
From 10K in 50:00, here are your projected race times.
Find Marathon races →Reference table — popular race times and the Riegel-projected 10K.
| Resultado de entrada | Predición | Notas |
|---|---|---|
| 5K 22:00 | 10K ~45:43 | Solid sub-46 target. |
| 5K 25:00 | 10K ~51:58 | Sub-52 prediction. |
| Half 1:30:00 | 10K ~40:48 | Sub-41 territory. |
| Half 1:45:00 | 10K ~47:36 | Sub-48 goal. |
| Half 2:00:00 | 10K ~54:24 | Approaching sub-55. |