DIRECTIONS

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.
  

Note:
Age-graded tables are the new WMA standards researched and compiled by Alan Jones http://home.stny.rr.com/alanjones/AgeGrade.html.
User interface and calculation code courtesy of The Heartbreak Hill Striders http://www.heartbreakhill.org