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Want help calculating training paces, race predictions and age gradings? More calculators here

Training - Race Time Predictor

This calculator takes one of your recent race performances, and indicates what would be an equivalent time in races of varying distances. It works best for similar-distance races e.g. entering a 5k time here will give you a strong prediction of your 10k capability, but it's less good if the races are extremely different e.g. entering your mile time will not give you a great indication of your marathon time.

Race Distance
Race Time Hours Minutes Seconds

Distance Estimate Per Km Per Mile
100 metres
200 metres
400 metres
800 metres
1km
1500 metres
1 mile
2km
3km
2 miles
3 miles
5km
5 miles
10km
15km
10 miles
Half Marathon
15 miles
20 miles
Marathon
50km
50 miles
100km
100 miles

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