OWN THE
IRONMAN 70.3
Bring your data from anywhere — Strava, Apple Health, or a file from any watch. Get the sports-science KPI layer coaches use — CTL, ATL, TSB, EF, ACWR — plus the Race Readiness Score: one number, every morning, that says whether you'll be ready on race day. You won't find it on your watch.
14-day free trial · No credit card · Cancel anytime
What you actually get
Performance management
CTL (fitness), ATL (fatigue), TSB (form) rebuilt daily from every workout. Know exactly when you're peaking.
Readiness
HR, HRV, sleep and ACWR into one green/yellow/red call.
Any source, one engine
Strava auto-sync, Apple Health, or a file from any watch — no single integration to depend on.
Acute : Chronic workload
Advanced ACWR tracking so you never stack a hard day onto a bad recovery. Live zone flags and taper guidance.
Plan vs actual
Unified TSS
Uniform training stress across swim, bike and run using your thresholds — CSS, FTP, run threshold pace.
Four race distances. One system.
Sprint (8 wk), Olympic (12 wk), Ironman 70.3 (16 wk), full Ironman (24 wk). Periodized with recovery weeks, brick workouts and a race-day taper targeting TSB +5 to +15.
Works with the watch you already own
Strava paywalling their API doesn't stop you. Auto-sync from Strava, import Apple Health for sleep & HRV, or upload a .gpx / .tcx file straight from any device — Garmin, Wahoo, COROS, Polar, Suunto, Apple Watch. You can even log a session by hand. Every source flows into the same engine.
Your heart data is not a growth metric
Every data class — identity, health & biometric, training, credentials, payment — has a published classification and protection standard. AES-256 at rest, TLS in transit, per-athlete row-level isolation, double-encrypted OAuth tokens, and your Apple Health export parsed on your device, never uploaded. Export or delete everything yourself, instantly — the same right in all 50 states.
Read the data classification$9.99 / year
Strava, Apple Health, or file upload from any watch · all four race plans · PMC, ACWR, readiness, unified TSS. 14-day free trial. No credit card. Cancel anytime.