TENTHS
Sonoma, California

Sonoma Raceway

Motorcycle Course · 3810 m · 13 corners · reference lap 1:43.21 (supersport 600, simulation estimate)

The reference below is a minimum-lap-time motorcycle line solved on this circuit's verified bike layout and measured track width, with speeds from a quasi-steady-state motorcycle model. It is a ceiling under ideal assumptions — use it to see where your headroom lives, then drop your own session file to measure yours.

Where the lap is won

Three places to look first

Biggest braking event

Chicane (T9A): 116.3 → 54.8 km/h over 96.0 m. Brake-point consistency here is worth more than anywhere else on the lap.

Commitment corner

Turn 1: reference minimum 144.9 km/h. Fast corners punish hesitation — min-speed spread here is the classic amateur time leak.

Slowest corner

Hairpin (T11A): 39.0 km/h minimum. Exit drive from here sets the following straight — spread on the exit costs the whole next sector.

Reference corner data — simulation estimates, km/h
CornerNameEntryMinExitBrake, m
T1 174.7 144.9 152.0 51.0
T2 113.1 83.7 145.1 39.0
T3 130.5 108.5 119.7 51.0
T3A 112.8 98.8 138.2 15.0
T4 98.3 67.7 125.8 57.0
T5 150.7 144.1 170.6 6.0
T6 Carousel 124.4 99.3 161.6 69.0
T7 Hairpin 112.7 62.5 106.0 111.0
T8 Esses 115.8 113.1 154.3 3.0
T8A 139.2 119.3 134.1 36.0
T9A Chicane 116.3 54.8 112.6 96.0
T10 144.7 134.9 165.7 0.0
T11A Hairpin 76.8 39.0 105.5 87.0

The browser engine re-solves only the speed profile on this fixed line for the selected bike class.

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