Track Log

Seeded from the ranking and the technique scores; edit status and notes here. Your edits stay in this browser and go back into the workspace when you drop the downloaded focus.json next to your sessions.

Open a session's laps to exclude the ones that weren't your riding (lead/follow, drills) or to tag and note them. Excluded laps drop out of every number on this page at once; technique scores follow after ratt annotate --file annotations.json.

Where corners are measured

Each lap is laid onto a 2,000-point distance grid built from OBD wheel speed, not GPS, so sessions logged on 1 Hz phone GPS line up with RaceBox sessions. Corner numbering follows the track definition: official turn numbers where the track has been mapped, otherwise C1…Cn auto-detected in lap order (the note under the title says which).

Clean lap

A lap within 10% of its own session's best (cutoff listed per session). Anything slower is treated as an out-lap, traffic, a flag or a pit stop. A lap that went through the pit lane is never clean, however quick: it is found from GPS position (a stretch of 40 m or more that is over 4 m outside the track's edge; with 1 Hz GPS, 100 m or more and slowing below 45 mph) and shows as a pit lap. Fast laps are clean laps within 7% of the whole day's best; corner stats and the work-on-next list use them so they reflect your current pace.

Front brake only

Brake pressure comes from a front-line sensor when one is fitted. Sessions without it (see the data-quality table) show blank pressure and brake-release columns, and brake markers come from deceleration instead. Rear-brake use isn’t logged.

Coasting

Three kinds of coasting

Rolling before braking: throttle closed on the way to a braking zone. Coaches treat it as almost pure lost time. Coasting after release: brake off, throttle not yet open. A short neutral moment at the slowest point is normal; seconds of it are not. Roll-off: throttle closed and reopened with no braking in between.

Brake ramp and time to peak

How fast total deceleration builds from the instant the brakes come on to 90% of that zone's peak. Trevitt and DataMC give about 1 g/s for a moderate rider and 3+ g/s for experts. Where a brake sensor and an IMU were logged alongside, they gave similar rates to wheel speed, so the numbers are not just smoothing.

Time gained and lost

Each day's best or typical lap (median time at every point of that day's fast laps) against your best-ever lap on the same track, along distance.

Rolling best

The fastest lap-length stretch you actually rode, starting anywhere on the track, taken from two consecutive clean laps in one session. It is the realistic target; the theoretical best rarely comes together in one lap.

Exit speed, straights and ranking

Gear

RPM divided by wheel speed, matched to the gear ratios in the bike profile.

Throttle source

The Tuono 660 is ride-by-wire, so OBD throttle may be the valve position the engine computer sets, not your grip. Coasting and throttle-opening counts depend on it until checked against video.

Peak decel

From smoothed OBD wheel speed. It reads about 0.1 g below an IMU where both were logged, so compare it only against itself.

Brake pressure

Front line pressure in psi from the logger's analog channel. Unless the sensor has been calibrated, treat the absolute scale as relative.

Throttle

All throttle figures on this page are rescaled from the bike profile's calibration so 0 = closed and 100 = fully open; 95 and above counts as wide open.