Predictor de Tiempo de Maratón
Predice tu tiempo de maratón basándote en tus tiempos de carreras más cortas.
Predicted Marathon Time (min)
240.2 minutes
Predicted Marathon Time (min) vs Recent Race Time
Fórmula
Riegel Formula
Predicted Time = Race Time x (Target Distance / Race Distance)^1.06
The Riegel formula, developed by Peter Riegel in 1977, accounts for the fact that pace slows as distance increases. The exponent 1.06 captures this endurance fatigue factor.
Ejemplo Resuelto
A runner who completed a 5K (3.1 miles) in 25 minutes.
- 01Marathon distance = 26.2 miles
- 02Distance ratio = 26.2 / 3.1 = 8.452
- 03Predicted time = 25 x 8.452^1.06
- 04= 25 x 9.55 = 238.7 minutes
- 05= 3 hours 58.7 minutes
- 06Pace = 238.7 / 26.2 = 9.11 min/mile
Preguntas Frecuentes
How accurate is the Riegel formula?
The Riegel formula is reasonably accurate for well-trained runners. It may overestimate for beginners and underestimate for elite runners.
Does training matter?
Yes. This prediction assumes you train adequately for the marathon distance. A 5K time alone does not guarantee marathon performance without proper long-run training.
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