Sports

Verified calculator with a transparent formula

Sports

Age-Graded Performance.

Estimates your age-graded performance percentage, comparing your race time to the world-record time for your age and gender.

Results update live as you type.
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Your inputs

How it works

  1. 1

    Enter your age, gender, and race time in minutes.

  2. 2

    The calculator estimates a reference time based on age and gender.

  3. 3

    It divides your race time by the reference time and multiplies by 100.

  4. 4

    The result is your age-graded score as a percentage.

100 * ( ( (gender == 'male' ? 1 : 0.9) * (1000 / (age + 10)) ) / race_time )

Frequently asked questions

What does an age-graded score mean?

It compares your performance to an estimated world-class standard for your age and gender. A score of 100% is world-record level.

Is this an official calculation?

No, it's a simplified estimate. Official age-grading uses complex tables and factors.

Can I use this for any race distance?

It's designed for running races, but you can use any time in minutes as long as you're consistent.

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Results

Formula checked

Age-Graded Score

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Ask Anything

Estimate for general guidance only — verify important decisions with an appropriate professional.

How it works

Estimates your age-graded performance percentage, comparing your race time to the world-record time for your age and gender.

  1. Enter your age, gender, and race time in minutes.
  2. The calculator estimates a reference time based on age and gender.
  3. It divides your race time by the reference time and multiplies by 100.
  4. The result is your age-graded score as a percentage.

Formulas

The math behind this calculator, written out so you can verify the result.

Age-Graded Score

Score = (Reference Time / Your Time) × 100

Reference time is estimated from age and gender using a simple formula.

Real-world use cases

Where this calculation shows up in everyday life.

Track improvement

See how your performance changes as you age.

Example: Compare your score at age 30 vs 50.

Compare across ages

Fairly compare runners of different ages.

Example: A 60-year-old's 45-minute run vs a 25-year-old's 20-minute run.

Tips and common mistakes

Tips

  • Use a consistent race distance for meaningful comparisons.
  • Scores above 100% indicate a world-class level.
  • This is a rough estimate; official age-grading tables are more accurate.

Common Mistakes to Avoid

  • Using hours instead of minutes.
  • Assuming the score is a percentage of your personal best.
  • Comparing scores across different distances without adjustment.

Assumptions and limitations

  • Use the stated inputs and units.
  • Results are estimates for planning and education.
  • Check measurements and source data before making an important decision.