Turn your track data into a clearer plan for your next session.
Porsche Track Precision · VBOX · AiM · RaceChrono
See how your lines stack up, side by side.
Understand where time is gained and lost, turn by turn.
Turn the evidence into one clear focus on track.
Save a CSV or VBOX file from Porsche Track Precision, VBOX, AiM or RaceChrono, then drop it here.
Your GPS picks the circuit from 77 built-in tracks and places the official turn numbers on your line.
See the corners costing you the most, with the traces and channels behind every finding.
Four timed laps in a Porsche 718 GT4 RS, logged with Track Precision. Pitwall lined up every lap, built a theoretical best from the fastest time through each corner, and ranked where the time goes.
Create a free account to keep your sessions in one place, sorted by track and car, and reopen any debrief later.
Road courses across the US and Europe, each with its turns placed from the official track map. Load a session and Pitwall recognizes the circuit from your GPS.
Drop in a session and Pitwall finds the track from your GPS, then places the official turns on your line.
The running time gap between Lap A and Lap B along the lap. The line dips into green where Lap A is pulling ahead and climbs into red where it's falling behind. The steeper the slope, the faster time is changing. Hover or play to read the gap at any point.
The closer your dots get to the green ring, the more of the car's grip you're using. Dots on the lower edges while turning mean you are trail braking: using braking and cornering grip together.
Sync video lines the footage up with your data on a gear change or braking point, which is more precise than the start/finish line because GPS runs slightly behind. Then Watch onboard plays the video full screen with your speed, pedals, gap and corner names on it, and Play on the traces keeps the video in step.
laps are split at a start/finish line placed from GPS, then every sample is projected onto your fastest lap's path so laps line up foot by foot. When your data is from a track in the library, turns carry the circuit's official numbers: the official list is matched to the bends in your line by order, direction and size, or placed from positions other drivers saved. Each corner's segment runs from the end of the previous straight to the end of the next one. Theoretical best adds up your quickest time through every segment. Corners where a lap is unusually slow with part-throttle cruising are treated as traffic (waiting for a point-by) and left out of the theoretical best, the coaching and the consistency figure. The theoretical best adds up your fastest clean time through each corner into one lap you can compare against. Car-balance calls (understeer, oversteer) come from comparing your steering with the rotation the car actually made, calibrated to this car. Brake and throttle estimated from g-forces are marked with a hollow dot when a file has no pedal channels.