Race Time Predictions

Prediction based on one known distance & time

The following calculator will predict a time for a distance based on a known distance and time you have achieved. The calculator is suitable for one mile (1.5km) and above distances.

Method

Enter details of a recent competition distance, time, and race distance, and select the 'Calculate' button.

I have completed
in a time of	hours minutes
Race distance is

The predicted time is	hours minutes

Predictions based on two known distances & times

The following calculator will predict a time for a specified distance based on two known race distances and times. The distance you require a time prediction should lie between the known distances.

Method

Enter the two known distances and times, the required distance for which you require a time prediction and then select the "Calculate" button.

Shortest distance	metres	Time seconds
Longest distance	metres	Time seconds
Race distance is	metres
	Predict time is seconds

Predictions based on three known distances & times

The following calculator will predict a time for a specified distance based on three known race distances and times. The distance required for a time prediction should lie between the known shortest and longest distances.

Method

Enter the three known distances and times, the required distance for which you require a time prediction and then select the "Calculate" button.

Shortest distance	metres	Time seconds
Middle distance	metres	Time seconds
Longest distance	metres	Time seconds
Race distance is	metres
	Predict time is seconds

Free Calculator

Race Time Calculator - a free Microsoft Excel spreadsheet you can download and use on your computer.

Page Reference

If you quote information from this page in your work, then the reference for this page is:

MACKENZIE, B. (2000) Race Time Predictions [WWW] Available from: https://www.brianmac.co.uk/racecalc.htm [Accessed 8/7/2025]

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