Data-Driven Driving
Every lap you drive becomes data you can talk to — browse it here, or chat with your own laps in Claude or ChatGPT.
HPDE Laps →
4,981 laps · 693 sessions · 19 drivers · 23 tracks
Latest: Oct 18, 2026, Road Atlanta
iRacing Laps →
Rig built · auto-logging on since Oct 13, 2026 · first laps landing soon.
See the rig in the Garage →What's new
He Out-Cornered Me in His Own Car. I Still Won by 1.177 Seconds.
Davidlee S. at Road Atlanta
Best 1:38.8 · '21 Chevrolet Camaro · 7 laps
Road Atlanta v1.1
The line now goes straight from throttle to brake: the 15–30 m of coasting drawn before each brake zone (T1, T3, T5, T6, T7 and T10a) is gone. The braking points are my own and stay where they were. Corner notes for T1, T3 and T5 now say these are firm stops, which is what the data shows.
Race line
Road Atlanta — every corner, from LiDAR
Study the track →sensor readings — GPS, speed, g-force, braking, steering & engine, logged lap after lap
LiDAR points of the actual asphalt — camber, elevation and crests measured across 3 tracks to ±2.2 cm
Household head-to-head
| Track | Bill B. | Zach B. | Gap |
|---|---|---|---|
| COTA | 2:31.1 | 2:40.0 | +8.920 |
| Road Atlanta | 1:36.2 | 1:52.0 | +15.770 |
| Roebling Road | 1:23.1 | 1:21.0 | +2.040 |
| VIR Full 2014 | 2:12.9 | 2:41.3 | +28.400 |
You can't rent a race engineer. So we built one.
Every fast pro driver has two people: a coach in the right seat, and a race engineer buried in the data between sessions. Coaching you can get — every Chin and JTI weekend has excellent instructors, and you should use them. The engineer is the half nobody rents for a track day. That's the part we do.
Send us your data and we'll write up your sessions — then tell us where we got it wrong, and we'll fix it. That's the whole beta.
Standing challenge: anyone out there under 1:33 at Road Atlanta? Our fastest logged lap is a 1:33.158. Beat it and we'll go find out why — corner by corner, against the camber of the road itself.
Chat with your laps
The data on this site is the public view. Drivers on the platform also get a private connector for Claude or ChatGPT — ask questions in plain English, get answers from your own telemetry.
Email your lap-timer export after a track day — Harry's Lap Timer, RaceBox, or Porsche Track Precision.
Laps are normalized, quality-checked, and ready to query in about 20 minutes.
“Walk me through my fastest lap, corner by corner — where am I giving up time?”