Pacelab: AI endurance coach

New: ACWR load ratio, editable workouts and .FIT export to your watch. Your coach adapts the plan to your fatigue, not the other way round.

Pacelab builds your training plan and recalculates it session after session. Like a coach who actually follows you, not a spreadsheet that ages badly.

A PLAN THAT MOVES WITH YOUR LIFE Pick your goal — 10K, half, marathon, trail, triathlon, sportive, or simply getting back in shape — and your full plan appears, week by week. Missed a session, brutal week at work, wrecked legs? Pacelab reshuffles what comes next instead of leaving you chasing an outdated schedule.

AN AI COACH YOU ACTUALLY TALK TO Tell it "I'm wrecked", "I'm away this weekend", "I want more hills". It knows your history, your training load and your recent sessions: it edits your plan and explains its reasoning. In English or French.

LOAD AND RECOVERY, MADE READABLE Fitness, fatigue and freshness (CTL / ATL / TSB) day by day, plus the acute:chronic workload ratio (ACWR) that warns you when your build-up turns risky. You know when to push and when to back off.

GENUINELY MULTI-SPORT Running, trail, cycling, swimming, triathlon, strength, hiking, rowing. Each sport gets its own zones and session logic: VO2max and threshold pace for running, FTP on the bike, critical swim speed in the pool.

YOUR ACTIVITIES SHOW UP ON THEIR OWN Connect Strava to import your workouts automatically. On iPhone, Pacelab reads your sleep, resting heart rate and heart rate variability from Apple Health to sharpen its recommendations.

YOUR SESSIONS, TUNED YOUR WAY Adjust reps, durations and recoveries on a workout template. The coach then reuses your version in the following weeks, rescaled to that week's volume.

ON YOUR WATCH Export any session as a .FIT file and load it onto your watch: no more retyping intervals by hand.

YOUR TARGET RACES Add your races with an A, B or C priority and let Pacelab place the taper. It also estimates a realistic finish time from your actual progression, not a one-size-fits-all formula.

ALSO INSIDE • Post-session journal: perceived effort, sleep, fatigue, niggles • Guided calibration of your physiological values (VO2max, threshold, FTP, swim pace) • Session reminders and recovery alerts • Interface and workout text fully bilingual English / French

Pacelab is free. Some advanced features unlock with an invitation code; nothing is sold inside the app.

Pacelab is a training tool for informational purposes. It does not replace advice from a healthcare professional.

Questions? support@pacelab.app