Compare your time with a chosen benchmark
Enter your performance and a reference time to calculate a simple percentage comparison. This is not an official age-grade score; it is a transparent comparison using the benchmark you provide.
Age Grade / Performance Benchmark Calculator
Compare a performance against a benchmark time you choose. This transparent percentage comparison is not an official age-grade calculation.
Why this calculator is useful
Compare your time with a reference you provide, ensuring both times refer to the same distance and event type.
How to use it
- Enter a recent, representative result or your planned race details, using the units shown beside each field.
- Select Calculate and review the result, including the assumptions and limitations shown.
- Use the result as a planning aid, compare it with how you feel, and recalculate when your inputs change.
Results are estimates, not guarantees. Fitness, recovery, weather, terrain, elevation and course conditions can all change the outcome.
Related running resources
All running calculators · Running guides · Training plans · UK race calendar · Triathlon and Ironman guide
Frequently asked questions
Is this an official age-grade score?
No. It compares your time with a reference time you enter. Official age grading uses published standards and the appropriate age, sex category and event distance.
How should I choose a benchmark?
Choose a clearly defined reference for the same distance and comparable course conditions. Explain the source and date if you share the comparison.
Can I compare different race distances?
Only if the benchmark time is for the same distance and event type. A time over 5K should not be directly compared with a marathon benchmark.
For race predictions and pacing, visit the Running Calculators hub, running guides and UK Race Calendar.