Marathon and Half-Marathon
Pace Calculator Tool

Precision pacing strategies for serious endurance athletes. Plan your splits, predict your potential, and master your race day performance.

Target Distance

Split Strategy Even Split

Negative (-5%) Positive (+5%)

Predict marathon performance based on a recent shorter race.

Recent Distance

Recent Time (HH:MM:SS)

Target Pace

--:--

per mi

Finish Time

avg -- mph

Easy/Recovery --:--

Marathon Pace --:--

Threshold --:--

Intervals --:--

mi increments

Distance	Split Time	Elapsed Time