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CalculatorAge grade calculator
Type your age, your time and the distance and get your age grade: how your run compares with the best possible for your age and sex. 60% is good local club running, 70% regional class, 80% national class.
Equivalent to about 22:47 for a man in their prime. The age standard for your age is 14:04.
What each grade takes at 45
| Grade | Time |
|---|---|
| 90% · World class | 15:38 |
| 80% · National class | 17:35 |
| 70% · Regional class | 20:06 |
| 60% · Local class | 23:27 |
| 50% · Recreational | 28:08 |
2025 USATF road age-grading tables (Alan Jones and Tom Bernhard). parkrun uses its own version of these tables, so its figure can differ by a point or two.
What an age grade is
An age grade compares your time with the age standard: the best time the tables say is possible for your exact age and sex over that distance. Divide the standard by your time and you get a percentage. A 45-year-old man running a 25-minute parkrun scores about 56%; a 60-year-old woman running the same time scores about 73%. That is the point of it — it lets a 25-year-old and a 65-year-old in the same club compare runs fairly, and it lets you compare yourself with you at 40.
The tables behind it
This calculator uses the 2025 road-running age-grading tables by Alan Jones and Tom Bernhard, approved by the Masters Long Distance Running Council of USA Track and Field in January 2025 and published as public domain. The factors for every age from 5 to 100 come straight from their spreadsheets, for 5 km, 10 km, 15 km, the half marathon and the marathon. parkrun uses its own version of the tables, so its figure for the same run can differ by a point or two.
How to read your number
The usual bands: 100% is world-record level, 90% world class, 80% national class, 70% regional class and 60% local class. Most club runners sit between 50% and 70%. The more useful comparison is with yourself: if your age grade is rising, you are improving faster than age is slowing you down, which is the only race anyone over 40 is really running.
Turning a grade into a goal
The table under the result gives the time each grade takes at your age. Pick the next one up, then use the race time predictor to see what that fitness means at other distances, and build a plan around it.
Common questions
What is a good age grade?
Over 60% is good local club running, over 70% regional class, over 80% national class and over 90% world class. Most recreational runners sit between 45% and 65%.
Why is my parkrun age grade different?
parkrun uses its own version of the age-grading tables. This calculator uses the 2025 USATF road tables by Alan Jones and Tom Bernhard, so the two can differ by a point or two for the same run.
Does age grading work for the marathon?
Yes — the tables have their own factors for the marathon, which are built from the best marathon times at each age rather than scaled from the 5 km.
Can I use it for Comrades or Two Oceans?
Not reliably. The tables this calculator uses cover 5 km to the marathon. For ultras use the Comrades predictor or Two Oceans predictor.
Put this calculator on your club’s website
Free for running clubs, coaches, race organisers and bloggers. Copy the code below into any page that accepts HTML — WordPress, Wix and Squarespace all do — and your members get the same live age grade calculator, with nothing to install and no sign-up.
Keep the credit line under it, please: that is the only thing we ask in return.
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