About
About F1 Session Analyzer
F1 Session Analyzer looks past the headline lap time of a Formula 1 session. It compares every driver's best lap at the same point on track and shows who is quickest through each corner, which team owns each part of the lap, and how the picture changes between sessions of the same weekend.
What it covers
- Every session type: Practice 1–3, Qualifying, Sprint Qualifying, Sprint and Race, from 2023 onward, subject to OpenF1's published coverage.
- Turn-by-turn ranking: the fastest driver and team at every corner, with the top three and their gaps, plus a track map coloured by the fastest team per segment.
- Head-to-head: any two analyzed drivers, corner by corner, with a duel map and speed deltas across the lap.
- Drivers and teams: best laps, tyre compounds, gaps, corner wins and per-team averages.
- Sectors, traps and traces: intermediate splits, finish-line speed traps and overlaid speed traces against lap progress.
- Race pace: stint-average pace and a least-squares tyre-degradation slope, with out-laps and incident laps excluded.
- Weekend view: a lighter top-five analysis of every session of the selected Grand Prix, showing how corner dominance shifted from practice to qualifying to the race.
- Classification and CSV: the official session result and CSV export from every table.
Where the data comes from
The browser calls the public OpenF1 API for meetings, sessions, drivers, laps, car data, stints, results and the circuit geometry URL. No F1 data is stored by this site and no server-side database is involved. OpenF1 is an independent community project, so its coverage, field names and availability can change; a session that has not been published yet will not analyze.
How the comparison works
Speed samples arrive over time, and drivers reach the same corner at different times. The app integrates speed into distance travelled and resamples each best lap to 1,000 evenly spaced points, so point 500 is the same piece of asphalt for every driver. Apex positions come from the circuit geometry; each corner is a window of about ±1.2% of lap distance around its apex. The ranking within that window is average speed, so a higher number means the driver carried more speed through the turn. A team's score is the mean of its drivers, and corner wins count the windows a team topped.
Tyre compounds come from the session's stint list matched to each best lap. Sector times and speed traps are the official splits of that same lap. Race-pace slopes fit a straight line through the clean laps of each stint; they are a description of the available data, not a prediction.
What it is not
This is a fan-built analysis tool, not an official timing service. It is not affiliated with Formula 1, the FIA, any team, any circuit or OpenF1. It does not show live telemetry, predict qualifying or race outcomes, or account for fuel load, tyre age, engine modes, track evolution or team instructions that are not in the public data.
Treat small gaps with care: a few tenths can be noise from telemetry sampling, traffic or a driver's out-lap. For an official result, use Formula 1's own timing and classification.
Corrections welcome. If a session is missing or a chart looks wrong, email soni.soni.parth@gmail.com or open a GitHub issue with the year, Grand Prix, session and share fragment. More detail is on Contact.
Keep reading
See Contact for corrections and bug reports, or Privacy for the requests the page makes and the state it keeps. Agents can read llms.txt for a compact guide and the Markdown version of this page at /about.md.