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Conditions

What the day adds.

Heat, humidity, altitude, and night running inflate finish time. See each factor's contribution.

Use with

Race time predictor

Start with a base finish time in ideal conditions.

Run the numbers

Adjusted finish

34:18:16

FactorPenaltyHours added
Heat & humidity+6.0%+1.8h
Altitude+3.5%+1.0h
Night running+4.8%+1.5h

TRAIN FOR THE COURSE, NOT JUST THE DISTANCE

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ALEX DANIELS

Founder

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