About this app
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
Latest release
What’s New
Altitude conversion algorithm improvements against fresh reference data captured this spring. Conversions are noticeably more accurate at NCAA altitude venues — Adams State, Air Force, Northern Arizona, Wyoming, Colorado, Albuquerque, BYU and the rest of the high-altitude circuit.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 2:03 AM Free
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