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Runner Information

Age:    Gender:

Race Distance and Time



Age-Graded Time and Achievement Percentile







This calculator is intended to provide you with an age-graded race time and an achievement percentile for a recent performance at a specific race distance.  Age-graded information allows you to:

  • Adjust your performance to what it theoretically would have been during your prime running years (your 20's and a portion of your 30's depending on the race distance).
  • Judge your performance, using an achievement percentile, without bias for gender or the aging process (in other words, you are measured against a specific standard for your age and sex).  These percentiles can be interpreted as follows:
  • Over 90% --- World Class
  • Over 80% --- National Class
  • Over 70% --- Regional Class
  • Over 60% --- Local Class
  • Compare your performances for a specific race distance at various ages to determine which was your "best race".

If, for example, you are a 55 year old male and want see age-graded information for a time of 21:45 that you recently ran in a 5K race, simply:

  • enter 55 in the Age field
  • select Male in the Gender field
  • select 5 Kilometers as the Race Distance.
  • enter 21 in the Minutes field and 45 in the Seconds field for Race Time.
  • press the Calculate Age-Graded Race Time & Percentile button.
  • the age-graded race time and achievement percentile will appear.

Age-graded tables are the new WMA standards researched and compiled by Alan Jones
User interface and calculation code courtesy of The Heartbreak Hill Striders