Table of Contents
What is Age Grading?
Age grading is a system developed by the World Association of Veterans Athletics (now World Masters Athletics) that allows runners of different ages and genders to compare performances on a level playing field. The system uses age-specific standards based on world record performances at each age to calculate an age-graded percentage that reflects how well you performed relative to the best possible time for your age and gender.
An age-graded percentage of 60% means you are performing at 60% of what a world-class athlete of your age and gender would achieve. The higher the percentage, the better your relative performance. This system is invaluable for masters runners who want to track whether they are truly improving despite the natural decline in performance with age.
Age Grading Formula
Performance Levels
| Age-Graded % | Level | Description |
|---|---|---|
| 90%+ | World Class | Nationally competitive, near world records |
| 80-89% | National | Competitive at national-level events |
| 70-79% | Regional | Competitive at regional-level events |
| 60-69% | Local | Competitive at local events |
| 50-59% | Recreational | Above-average fitness runner |
| Below 50% | Beginner | Still developing fitness |
Age Factor Table
Age factors decrease gradually from age 30 onward, reflecting the natural decline in physical performance. The decline accelerates after age 70. Here are approximate 5K age factors for males:
| Age | Male Factor | Female Factor |
|---|---|---|
| 25-30 | 1.000 | 1.000 |
| 40 | 0.955 | 0.962 |
| 50 | 0.898 | 0.913 |
| 60 | 0.828 | 0.849 |
| 70 | 0.745 | 0.770 |
Frequently Asked Questions
Is age grading accurate?
Age grading provides a reasonable approximation based on world-record data. It is most accurate for distances from 5K to marathon and for ages 20-80. At extreme ages or unusual distances, the factors may be less precise. The tables are updated periodically as new records are set.
Why is my age-graded percentage different for different distances?
Aging affects different physiological systems at different rates. Speed declines faster than endurance, so a masters runner may have a higher age-graded percentage at longer distances. This is normal and reflects the physiology of aging.