Race Time Calculator

With this calculator you can predict a race time based on your recent run. Enter your time on one distance and see a prediction for another distance. I use this after every run to see what my time on marathon would have been. Just keep in mind that it's still a prediction.

Marathon Calculator

This marathon calculator tells how fast you have to run shorter distances to make your goal time at the marathon. It is good for setting goal times to be used during training. Find out how fast world record holder have to run the shorter distances. Can you keep up the pace for even a mile?

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