CTL Simulator
Simulate your fitness build (CTL) over weeks — plan your season with real numbers.
Configure Simulation
Weekly TSS
CTL Progression over Simulation Period
Weekly Breakdown
| Week | TSS | CTL (end) | Change | Load Zone |
|---|
Track Real CTL from Strava
WattWorks calculates your CTL automatically from your activities — updated daily with ATL and TSB.
Start for free →Free · No subscription