Why submit?
- The average finish times on this site are currently baseline estimates. Real submissions replace them with actual data.
- You get an immediate comparison: how your time ranks against your age group.
- We store no name, no email, no device ID — only distance, time, age and gender.
Everything you type into the calculators on this site stays in your browser. Only this form sends data, and only the four fields above.
Frequently Asked Questions
Is my data anonymous?
We store no name, no email, no device ID — only distance, time, age and gender.
How these numbers are produced
Each figure blends a published baseline model with real anonymous submissions using a shrinkage estimator: with few samples the value stays close to the baseline, and as submissions accumulate the real data takes over. Groups with fewer than 8 submissions show the baseline only.
Gear runners ask about
GPS running watch
Pace, laps and alerts on your wrist
Chest strap heart-rate monitor
More reliable than wrist-based HR
Race day running shoes
Lightweight shoes for tempo and race pace
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