Finish Time Predictor

Over the years there have been a few methods for calculating esimated race finish times for distances never run before. This calculator shows the results of formulas by Peter Riegel and Dave Cameron.

Enter either a previous finish time or an average pace and the results will calculate the estimated finish times of other distances.

1Select if you are working in metric (kilometers) or imperial (miles) units

Metric
Imperial

2Select if using a race finish time or average pace

Finish Time
Average Pace

3Enter the finish time or average pace

4Select the distance this time or pace corresponds to

100m
200m
400m
800m
1500m
1 Mile
2 Miles
5k
5 Miles
10k
10 Miles
Half Marathon
Marathon
Custom
KM

5See the estimated race times for common race distances below based on your input values of running 0 in 0

Time
Pace
Distance
Riegel
Cameron
100 Metres
00:00:00
00:00:00
200 Metres
00:00:00
00:00:00
400 Metres
00:00:00
00:00:00
800 Metres
00:00:00
00:00:00
1500 Metres
00:00:00
00:00:00
1 Mile
00:00:00
00:00:00
2 Miles
00:00:00
00:00:00
5k
00:00:00
00:00:00
5 Miles
00:00:00
00:00:00
10k
00:00:00
00:00:00
10 Miles
00:00:00
00:00:00
Half Marathon
00:00:00
00:00:00
Marathon
00:00:00
00:00:00
50k
00:00:00
00:00:00
50 Miles
00:00:00
00:00:00

The results from all formulas tends to fall away towards the extremes so the very short or very long races may be somewhat unreliable however the 5k to marathon range tends to be fairly well accepted as a good guide.

Alternatives

Another way to predict a race time is to use the age grade calculator which, when including age, will use age grading tables to calculate an age grade score, then use this to predict equivalent age graded times for other distances.

Calculations here are based on