Age-Graded Running Score Calculator

About this calculator

Age grading converts a race time into a percentage by comparing it against the best time recorded for a runner of your exact age and sex over that distance, using standard tables (originally compiled by WAVA/WMA and updated periodically) that capture how age affects performance across every event from the 100m to the marathon. A score near 100% means a performance at or near the world-best standard for that age and sex, while age-graded scores in the 60-70% range represent solid recreational performances — the same percentage scale applies whether you're 25 or 75, which is what makes it useful for comparison.

Masters runners and age-group competitors use age grading to track genuine improvement or decline year over year despite the fact that raw times naturally slow with age, and race organizers use it to award age-graded prizes so that older and younger finishers can be judged on a level footing. It also converts your result into an open equivalent time — what that same percentage performance would look like at peak open-age ability — which is useful for comparing yourself against runners in a different age bracket.

This calculator takes your race distance, finish time, age and sex, and returns your age-graded percentage along with the equivalent open-age performance time.