Running Age Grade Calculator
Age Grade Score
Calculate your age-graded performance percentage for a race distance
Equivalent Race Times
Predict race times at other distances from a known result
Formula
Age Grade % = (Age-adjusted record / Actual time) x 100 | Riegel: T2 = T1 x (D2/D1)^1.06
Frequently Asked Questions
What is age grading in running?
Age grading converts your race time to a percentage score that accounts for age and gender. It compares your time to the world record for your age group. This allows fair comparison across ages and between genders.
What is a good age grade score?
50%+ is recreational, 60%+ is competitive for local races, 70%+ is regional level, 80%+ is national level, 90%+ is world-class. Most regular runners score 40-65%.
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