Age-graded Time Formula:
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Age-graded time allows comparison of race performances across different age groups by adjusting for the physiological effects of aging. It predicts what your race time would be if you were in your prime running years.
The calculator uses the age-grading formula:
Where:
Explanation: The age factor accounts for typical performance decline with age, allowing fair comparison across age groups.
Details: Age-grading helps athletes compare performances over time, set appropriate goals, and compete fairly in age-group competitions.
Tips: Enter your actual race time in minutes and your age factor (available from age-grading tables). Both values must be positive numbers.
Q1: Where can I find my age factor?
A: Age factors are published by running organizations and vary by distance, age, and gender. Check with your national athletics organization.
Q2: How accurate is age-grading?
A: It provides a good general comparison but individual variations in aging mean it's not perfect for everyone.
Q3: Can I use this for any race distance?
A: Yes, but you need the appropriate age factor for your specific race distance.
Q4: Does this account for training differences?
A: No, it only accounts for typical age-related decline, not individual training status.
Q5: What's a good age-graded percentage?
A: 60% is typical for recreational runners, 70% is good, 80% is excellent, and 90%+ is world class.