Leveling the Generational Playing Field
In running, peak cardiovascular performance typically occurs in an athlete's late 20s to early 30s. After age 35, Maximum Heart Rate steadily decreases, VO2 max drops, and muscle elasticity degrades.
If a 55-year-old man runs a 5K in 21 minutes, he will easily be beaten by a 25-year-old running 19 minutes. But who actually ran a biologically more impressive race? Age Grading answers this question.
The WMA Statistical Tables
The World Masters Athletics (WMA) organization maintains massive statistical tables documenting the absolute World Record for every single age and gender, down to the exact year.
By comparing your finish time to the World Record for a human of your exact age, you are given a percentage score that levels the playing field across generations.
The Formula
While the lookup tables are incredibly complex, the core mathematical concept is a simple ratio:
Age Graded % = (World Record for Age / Actual Time) * 100
Grading Classifications
Your resulting percentage dictates your global biological standing:
- 100%: You have tied the World Record for your age.
- 90% - 99%: World Class level.
- 80% - 89%: National Class level.
- 70% - 79%: Regional Class level.
- 60% - 69%: Local Class level.