Distance-aligned overlays
Lap time comparison only works when the traces line up. Hotlap.ai aligns laps so differences are shown at the same part of the circuit, even when laps come from different sessions.
Lap comparison
A lap comparison tool for finding hidden tenths
Hotlap.ai makes lap comparison fast enough to use between sessions. Pick two laps, align them by distance, and inspect exactly how each input changes through every braking zone, apex, and exit.
Free to startDesktop and web workflows
Built for iRacingNative .ibt telemetry context
Driver-firstReview what changes the lap
Track map plus telemetry traces
The 3D track map shows where the driver is on the circuit while charts reveal what the car and driver are doing. Telemetry coloring, cursor sync, camera modes, sector markers, and AI markers help connect a time loss to a specific corner phase.
Best sectors and consistency
Beyond one fastest lap, Hotlap.ai helps drivers understand repeatability. Sector and consistency views make it easier to identify whether the pace is available once or repeatable across a stint.
How to compare two laps
A focused path from session data to the next change you can test on track.
- Step 1
Pick the two laps
Choose your lap and a target lap from a personal best, teammate, live lap, or community reference. The comparison starts with the question: what did the faster lap do differently?
- Step 2
Align by distance
Hotlap.ai aligns traces by track distance, so the brake zone, apex, and exit line up even when the laps are different speeds.
- Step 3
Read delta with inputs
A delta change becomes useful when it is viewed beside speed, brake, throttle, steering, gear, RPM, tire data, and 3D map position.
- Step 4
Check repeatability
Use sectors and lap stats to see whether the faster approach is repeatable across a stint or just one peak lap.
Best used for direct reference-lap study
This page is about comparison, not general analysis. It should answer a specific question: what did the faster lap do at the same point on the circuit?
Start with the compare picker, choose a relevant reference, then look for the first distance where the delta changes. That keeps the review tied to a real alternative line or input pattern.
More from this workflow
Questions drivers ask
Why align laps by distance instead of time?
Distance alignment shows what both drivers did at the same point on the circuit. That makes brake points, apex speed, throttle pickup, and exit speed easier to compare than timestamp-only charts.
Can I compare more than one kind of lap?
Yes. The analysis workspace supports local laps, cloud laps, community reference laps, and live lap data, with shared cursor, zoom, sector tables, lap stats, legends, and persistent chart layouts.
Find your perfect lap.
Use Hotlap.ai to compare the lap, understand the inputs, and leave review with one clear thing to try next.