Free tool
Age-Grade Calculator
Your time, scored against the world standard for your exact age. It's the fairest number in running — and the only leaderboard where you're still only racing yourself.
Age grade
%
Open-equivalent time
What your run is worth at open age
World standard, your age
The 100% line you're graded against
2025 road standards by Alan Jones, the tables behind parkrun's age grading. The women's and men's standards are the two published sets — pick whichever you race under. Over 90% is world class. Over 60% means the training is working. Under that means you have a hobby with upside.
Want the training to go with the numbers?
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