Training Pace Calculator
Turn a recent race into practical pace ranges, with an explicit usefulness rating and no false precision.
How to use this result
Worked example: A recent 10K result is normalized to a 10K-equivalent pace and converted into deliberately broad easy, long, steady, threshold and interval ranges.
Methodology
The tool uses a Riegel-normalized 10K equivalent and transparent pace multipliers. Recency, race distance and current volume determine the usefulness label.
Limitations
- • Race fitness does not capture sleep, soreness, illness or terrain.
- • The ranges are not individualized physiological thresholds.
- • Heat and hills should move the target toward effort rather than pace.
Interpretation
- • Begin at the slower end of each range.
- • Easy pace should remain conversational.
- • Do not add every pace category in the same week.
Frequently asked questions
Are these paces personalized training zones?
They are transparent starting ranges based on a recent race, not laboratory-measured physiological thresholds. Adjust for terrain, weather, fatigue and how the effort feels.
Which race result should I use?
Use a recent, well-paced race or hard effort. Results from 5K through half marathon generally transfer more directly than a sprint or ultra-distance effort.
Should every run fit one of these ranges?
No. Recovery, hills, heat and accumulated fatigue can make a slower pace appropriate. Effort should take priority over forcing a number.