Pace Board: running pace calculator and race planner

Pace Board

Streak 0 days

Today’s target

Distance

Distance (km)

Time, pace and speed

Finish time

Pace (/km)

Speed (km/h)

Pace slider

Change any of the three and the other two follow. Changing the distance keeps your pace.

Pacing plan

Split strategy

Splits

Distance	Pace	Split	Elapsed

Race predictor

Race	Predicted	Pace

Predictions use the Riegel formula: T2 = T1 × (D2 ÷ D1)^1.06. Enter a recent race as distance and finish time above. The formula assumes you have trained for the longer distance, so treat marathon numbers as a best case, and it works best between about 3K and 42K.