Supwell vs Laktic Pace Calculator

Supwell is the ultimate app for hobby joggers and running shoe enthusiasts. Whether you're hunting for your next pair of running shoes, looking to sell gently used kicks, or want to connect with a community of passionate runners — Supwell has you covered. BROWSE & SELL RUNNING SHOES Shop the Supwell marketplace for gently used running shoes at great prices. From daily trainers to carbon-plated race day shoes, find your next pair or sell shoes that didn't work for you. IN-DEPTH SHOE REVIEWS Get detailed breakdowns of the latest running shoes on the market. We cover cushioning, ride feel, foam compounds, fit, and more so you can make smarter buying decisions. TRACK YOUR MILEAGE Log your runs and track mileage across all your shoes. Know exactly when it's time to retire a pair and lace up something fresh. HEALTH INTEGRATION Sync with Apple Health to automatically import your workouts and keep all your running data in one place. COMMUNITY & FORUMS Join the conversation with other hobby joggers. Share your runs, ask for shoe recommendations, and get daily motivation from runners who get it. Subscribe for $4.99/month to unlock the full Supwell experience including marketplace access, shoe tracking, and community features. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.supwell.com/privacy

Today's threshold paces, adjusted for the heat. Enter a race PR, track or road, and get LT1, Sub-T and LT2 ranges slowed for the temperature and dew point at your track, now or at practice time. Coaches: add your roster, write a note, and share the board as a card. Enter a 5000m, 3200m, 3000m, 1600m, mile or 1500m PR, or a 5 mile, 10K, half marathon or marathon PR, and the app computes the Track and Road Performance training zones: Easy, Long Run, Steady, and the three threshold zones LT1, Sub-T and LT2, with race-pace rows for road distances. Miles or kilometres, your choice. Get today's temperature and dew point for your location, pick a practice time for that hour's forecast, search a city or ZIP, or type the numbers yourself, and every pace is slowed by the heat penalty. The adjustment is scaled by rep length. Short threshold reps with recovery build less heat load than continuous running, so 1–3 minute reps take half the penalty, 4–6 minute reps three-quarters, and 7–10 minute reps and continuous runs the full amount. Within each threshold zone, short reps sit at the fast end of the range, medium reps in the middle, and long reps at the slow end. Every pace shows the per-mile range and the seconds-per-400 m split, so it goes straight to the track. For coaches: keep a roster of athletes on your phone and build a workout board for today's conditions. Pick a zone and rep length and see every athlete's heat-adjusted range, fastest first, filtered by group. Write a note on the board and share it as a card, along with today's paces, the heat, a new PR or a finished session. Log a session: type your reps and see hit, hot or cold against today's band. Export the roster as a file, import one from an assistant coach, or copy a share link that opens the same roster in the web version. How the heat model works: heat score = temperature °F + dew point °F. At 100 or below there is no adjustment. The penalty rises to 10% at 180. Above 180 the app tells you running is not recommended and shows paces at the cap for reference only. Privacy: your location is used only to fetch the weather and the town name. Athlete names and PRs stay on your device unless you export or share them; share cards are drawn by our server from the numbers on screen and are not stored. Sign-in is optional. No tracking, no ads. Training guidance, not medical advice. Use judgment in extreme conditions. Pace engine: Track and Road Performance. Weather data by Open-Meteo.