Age Grade Calculator for Marathon Performances – With Alternatives

An old man running a marathon. An age grade calculator would help him understand his performance.

To use the calculator below, enter the runner’s age in years, select their gender, and enter their finish time in the format H:M:S (i.e. 3:45:42). The results will include: Continue reading below for some additional context. Note: The underlying tables are only calculated for runners up to age 79. This will not return useful data … Read more