RunCalc: Altitude & Pace
#230,556 of 719,896 by ratings on Apple · #5,450 of 20,445 in Sports
First seen by this census 09/05/2026 — the store does not publish a creation date
Last updated 05/02/2026
Tracked since 09/05/2026
Compare with another extension
Category: Sports
Description
Convert race times across any altitude — instantly.
Pick your start and finish track from 190+ NCAA venues, or enter any custom elevation. RunCalc applies a per-distance altitude correction and shows your equivalent time, broken-down splits, and Riegel projections in one tap.
Built for distance and middle-distance runners, track and cross country coaches, and college recruiters comparing PRs across venues.
WHY RUNCALC
The NCAA normalizes race times so collegiate athletes can be compared across venues at different altitudes. Most runners only see those numbers at formal meets. RunCalc puts the math in your pocket — useful for training, recruiting, and pacing on race day.
FEATURES
• Altitude time conversion — sea level to Albuquerque, Boston to Boulder, anywhere to anywhere
• 190+ NCAA tracks, indoor and outdoor, with verified elevations
• Custom altitudes — enter any elevation in feet or meters
• Pace splits — 200m, 400m, 1k, or mile intervals for any race distance
• Equivalent times — Riegel projections from 100m through marathon
• Conversion history — save, revisit, and share past calculations
• GPS proximity — RunCalc detects nearby tracks and offers to use them
• Favorite tracks — star the venues you use most so they pin to the top
• Imperial or metric
HOW IT WORKS
RunCalc applies a per-distance altitude correction above 2000 feet, aligned with the Daniels Oxygen Power tables — the same family the NCAA used historically. Sprints (100–400m) are largely unaffected. Longer races take a larger penalty as VO2max declines with elevation. We are not affiliated with the NCAA.
PRIVACY
No accounts. No analytics. No advertising. No tracking. Location is used only on-device to detect nearby tracks — it is never transmitted.
Made by a runner, for runners.
Got a feature request or bug? Email runcalcapps@gmail.com
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Growth
Change in ratings, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | 0 | — | 0 | 9.6 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Tracking since 09/05/2026. History accumulates as changes are observed — check back soon.