Not “Great effort!”. Not another wall of charts.Your ride, explained.
Post-ride analysis for riders with power meters. WattLabs reads what your numbers actually mean — pacing, W′, durability, fueling — and tells you straight, the way a sharp coach would over coffee.
We'll email you when your spot opens up. No spam, no reselling — just an invite.
What you get that your head unit won't tell you
Pacing, judged
Did you go out too hard? Fade on the third climb? We compare your effort against how the ride should have been ridden — not just what your average was.
W′ balance you can read
Every match you burned and every one you had left, mapped over the ride. See exactly where you cracked and where you left watts on the road.
Durability, honestly
Anyone can hold power fresh. We measure how your power and efficiency hold up deep into a ride — the number that actually predicts race day.
Fueling that adds up
Carbs burned versus carbs you likely took in, ride by ride. The gap that explains the bonk you couldn’t.
What a ride looks like in WattLabs
These are the actual cards from the ride page, filled with a made-up rider's made-up ride. Sample data — not a real person.
W′ Balance
Anaerobic capacity remaining above CP (285W) — differential W′bal, Pugh “Reg” recovery
Durability — power under fatigue
Best power after N kJ/kg of work this ride, as % of fresh
Fuel used
Estimated substrate burn from power — what your body used, not what you ate
High carb demand — fuel early and often, or expect to fade. Peaked at 212 g/hr.
A mirror, not a coach
Most tools either cheer you on or bury you in dashboards. WattLabs is built for the self-coached mid-level rider who already trains with power and wants the truth about a ride — where it was won, where it slipped, and what to do about it next time.
Upload FIT files, or sync Garmin or Strava. Your history backfills automatically.
Power zones, W′ balance, durability, and fueling — computed per ride, no setup.
Plain-language analysis of what happened and what it means for the next one.
Want in?
Spots open in batches. Drop your email and we'll reach out the moment we can onboard you.