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A marathon time predictor estimates your 42.2 km finishing time from a shorter race result using Riegel's formula, which accounts for increased physiological fatigue over longer distances.
Trin-for-trin guide
- 1Riegel's formula: T₂ = T₁ × (D₂/D₁)^1.06
- 2The 1.06 exponent accounts for fatigue
- 3Marathon = 42.195 km
- 4Train to match predicted pace for success
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What is Marathon Time Predictor Estimates Your 42?
A marathon time predictor estimates your 42. 2 km finishing time from a shorter race result using Riegel\
How accurate is the Marathon Time Predictor Estimates Your 42 calculator?
The calculator uses the standard published formula for marathon time predictor estimates your 42. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Marathon Time Predictor Estimates Your 42 calculator use?
This calculator works with inches, kilometres. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Marathon Time Predictor Estimates Your 42 calculator use?
The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.
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