RACE / LAP / SECTOR
Follow a question into the lap.
Put two laps side by side. Follow the speed, the throttle and the rhythm of a corner. Compare two drivers, or revisit one driver at different moments of a race.
START WITH A RACE
Two circuits. Eight laps to begin.
Load more completed races · OpenF1
Load a historical season, choose a race, then select drivers and laps. Data is requested when you ask and reused during this visit.
CURRENT COMPARISON / TIMING & RHYTHM
2026 Singapore
Aligned by seconds from the start of each lap. Select the chart, use the time control, or jump to a sector with S1 / S2 / S3. Below the traces, compare each sector by its own elapsed fraction, or open interval analysis to inspect observations and coverage.
| Sector | A | B | A−B |
|---|---|---|---|
| S1 | 28.441 | 28.307 | +0.134 |
| S2 | 40.692 | 40.048 | +0.644 |
| S3 | 27.068 | 26.847 | +0.221 |
| Lap | 96.201 | 95.202 | +0.999 |
HISTORICAL LAPS / REPLAY
Let the lap unfold.
Both laps start together on this clock. Follow elapsed-time progress and the closest recorded samples below.
Reduced motion is on. Use the timeline, sector buttons or five-second steps to inspect the lap.
- Speed
- 150 km/h
- Gear
- 4
- Throttle
- 0%
- Brake
- On
Sample at 30.022 s
- Speed
- 147 km/h
- Gear
- 5
- Throttle
- 0%
- Brake
- On
Sample at 30.037 s
Compare one sector at each lap’s own time progress.
ONE SECTOR / EACH LAP’S OWN ELAPSED FRACTION
One sector. What did each lap record?
Choose S1, S2 or S3, then the same percentage of sector time. Each lap uses its own sector duration: 50% is halfway through each S2 in time, not the same position around the circuit.
Requested lap time: 48.787 s
- Speed
- 182 km/h
- Throttle
- 0%
- Brake state
- On
- Gear
- 6
Observed sample 48.942 s / offset +0.155 s
Requested lap time: 48.331 s
- Speed
- 216 km/h
- Throttle
- 0%
- Brake state
- On
- Gear
- 6
Observed sample 48.397 s / offset +0.066 s
Begin with an observed brake-on sample
These buttons mark adjacent valid observations where brake state changes from 0 to 100. Selecting one compares both laps at that observation’s fraction of the chosen sector’s time.
Interval analysis: compare speed and pedal signals in one part of the lap
FROM TRACES TO NUMBERS / AUDITABLE INTERVAL ESTIMATES
Choose an interval. Then inspect how it is measured.
Select the same fraction of each lap or sector’s elapsed time. The first half of S2 means the first 50% of each driver’s own S2 duration, not matching positions around the circuit.
Use whole percentages from 0 to 100, with start before end; apply after editing.
Applied: whole lap · 0—100%
Lap 44
0.000—96.201 s · duration 96.201 s
Covered 95.961 s · uncovered 0.240 s
- Time-weighted speed (estimate)
- 182.57 km/h
- Time-weighted throttle (estimate)
- 54.18%
- Throttle ≥99%
- 40.92 s · 42.65%
- Brake signal on
- 20.92 s · 21.80%
- Throttle ≤1%, brake off
- 7.04 s · 7.33%
Lap 41
0.000—95.202 s · duration 95.202 s
Covered 94.920 s · uncovered 0.282 s
- Time-weighted speed (estimate)
- 185.11 km/h
- Time-weighted throttle (estimate)
- 61.58%
- Throttle ≥99%
- 45.24 s · 47.66%
- Brake signal on
- 25.00 s · 26.34%
- Throttle ≤1%, brake off
- 0.48 s · 0.51%
Means and state percentages use covered time only. Brake is an on/off signal, not pedal pressure; these estimates alone cannot explain why one lap was quicker.
Inspect brake-signal runs and seek their source samples
These contiguous runs come from the left-hold estimate, not exact brake onset or release times. Times are seconds from that lap’s start; each button seeks the source sample in the replay above.
A / VER · lap 44
- 3.821—5.381 s · ≈1.56 s
- 8.141—9.462 s · ≈1.32 s
- 16.382—17.821 s · ≈1.44 s
- 28.781—31.261 s · ≈2.48 s
- 34.261—36.582 s · ≈2.32 s
- 40.461—41.701 s · ≈1.24 s
- 48.381—49.902 s · ≈1.52 s
- 52.381—53.421 s · ≈1.04 s
- 57.821—60.661 s · ≈2.84 s
- 69.182—71.461 s · ≈2.28 s
- 82.542—84.581 s · ≈2.04 s
- 91.062—91.901 s · ≈0.84 s
B / LEC · lap 41
- 3.997—6.077 s · ≈2.08 s
- 7.957—9.957 s · ≈2.00 s
- 16.157—18.038 s · ≈1.88 s
- 28.717—31.118 s · ≈2.40 s
- 34.077—36.517 s · ≈2.44 s
- 40.077—41.597 s · ≈1.52 s
- 47.997—49.757 s · ≈1.76 s
- 51.998—53.437 s · ≈1.44 s
- 57.358—60.357 s · ≈3.00 s
- 68.717—71.438 s · ≈2.72 s
- 81.637—84.118 s · ≈2.48 s
- 90.118—91.398 s · ≈1.28 s
Calculation method and uncovered intervals
Hold each value until the next sample, clipped to the selected bounds. Exclude an entire interval when consecutive samples are more than two seconds apart. Do not extrapolate before the first or after the last sample. Weight speed, throttle and state durations by the same covered intervals.
Throttle and brake signals can overlap, so the listed state durations need not sum to covered time. Sector ranges use that lap’s timing boundaries; the final sector ends at the lap duration.
A / VER
- 0.000—0.221 s
- 96.182—96.201 s
B / LEC
- 0.000—0.157 s
- 95.077—95.202 s
AFTER READING / THE CONVERSATION
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