Running Age Grading Calculator
Age-grade a race performance using published age standards you enter for your event and age group.
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What this tool does
Age-grade a race performance using published age standards you enter for your event and age group. This tool deliberately does not embed a built-in factor grid: WMA factors are event-, sex- and single-year-of-age-specific, and a partial grid would silently mis-grade many runners. Enter the two standards from the current published WMA tables (or a race's official age-grade calculator) and the grading math is exact.
How to use the Running Age Grading Calculator
- Enter or select your time (minutes).
- Enter or select age-group standard for this event (minutes, from the published wma age-grading tables).
- Enter or select open (world-class) standard for this event (minutes).
- Read the calculated result; change any measurement to compare alternatives.
Formula
age-grade % = age-group standard ÷ your time × 100; age-graded time = your time × (open standard ÷ age-group standard). Standards are the World Masters Athletics (WMA) published values for your event, sex and age group, which you enter
- yours
- Your time (minutes)
- ageStd
- Age-group standard for this event (minutes, from the published WMA age-grading tables)
- openStd
- Open (world-class) standard for this event (minutes)
This tool deliberately does not embed a built-in factor grid: WMA factors are event-, sex- and single-year-of-age-specific, and a partial grid would silently mis-grade many runners. Enter the two standards from the current published WMA tables (or a race's official age-grade calculator) and the grading math is exact.
Worked example
For running age grading calculator, the following measurements illustrate the exact method: Your time (minutes): 25; Age-group standard for this event (minutes, from the published WMA age-grading tables): 20; Open (world-class) standard for this event (minutes): 16.5.
Inputs
- Your time (minutes)25
- Age-group standard for this event (minutes, from the published WMA age-grading tables)20
- Open (world-class) standard for this event (minutes)16.5
Result
- Age-grade (%)80
- Age-graded time (minutes)20.63
- Performance levelNational class
Results explained
- Age-grade (%)
- Age-grade (%) from the formula above. This tool deliberately does not embed a built-in factor grid: WMA factors are event-, sex- and single-year-of-age-specific, and a partial grid would silently mis-grade many runners. Enter the two standards from the current published WMA tables (or a race's official age-grade calculator) and the grading math is exact.
- Age-graded time (minutes)
- Age-graded time (minutes) from the formula above. This tool deliberately does not embed a built-in factor grid: WMA factors are event-, sex- and single-year-of-age-specific, and a partial grid would silently mis-grade many runners. Enter the two standards from the current published WMA tables (or a race's official age-grade calculator) and the grading math is exact.
- Performance level
- Performance level from the formula above. This tool deliberately does not embed a built-in factor grid: WMA factors are event-, sex- and single-year-of-age-specific, and a partial grid would silently mis-grade many runners. Enter the two standards from the current published WMA tables (or a race's official age-grade calculator) and the grading math is exact.
Frequently asked questions
The commonly used bands are 90%+ world class, 80% national class, 70% regional class and 60% local class. Most committed club runners score between 60% and 80%.
WMA age standards differ by event, sex and every single year of age, and the tables are revised over time. Entering the two published standards for your exact case keeps the result honest instead of interpolating a coarse built-in grid.
It is your performance translated to open-class terms: the time an athlete in their prime would need to match your age-graded quality. It lets a 60-year-old and a 25-year-old compare performances directly.
Yes — it means you ran faster than the age-group standard itself, which happens when a record-level performance rewrites what the standard should be.
The method is identical but the standards are sex-specific, so the same race time produces different percentages for men and women. Use the standards column for your category.