โฝ Sports
Marathon Pace Predictor
Most runners fade in the last quarter of a marathon, so even or slightly negative splits produce the best times. Going out too fast costs far more in the final 10 kilometres than the time it gains in the first half.
How it works
Goal time โ hours
Goal time โ minutes
Pacing strategy
Course
Goal time
Overall pace
First half split
Second half split
Even pace per 5 km
Course note
Frequently asked questions
How do I use the Marathon Pace Predictor?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.