Yasso Running Calculator

Features Yasso Running Calculator

Input your desired marathon time and we will tell you at what average speed you should run between 8 and 12 laps of 800 metres.
After you completed you session, input your actual average pace and we will predict your marathon time.Input your desired half-marathon time and we will tell you at what average speed you should run between 8 and 12 laps of 400 metres.
After you completed you session, input your actual average pace and we will predict your half-marathon time.