Sonoma Raceway
4115 m · 11 corners · reference lap 2:02.00 (supersport 600, simulation estimate)
The reference below is a minimum-time line solved from this track's geometry with 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.
Three places to look first
Biggest braking event
Turn 5: 130.2 → 44.5 km/h over 87.0 m. Brake-point consistency here is worth more than anywhere else on the lap.
Commitment corner
Turn 10: reference minimum 135.9 km/h. Fast corners punish hesitation — min-speed spread here is the classic amateur time leak.
Slowest corner
Turn 5: 44.5 km/h minimum. Exit drive from here sets the following straight — spread on the exit costs the whole next sector.
| Corner | Name | Entry | Min | Exit | Brake, m |
|---|---|---|---|---|---|
| T1 | 122.2 | 48.9 | 143.3 | 54.0 | |
| T2 | 96.4 | 57.6 | 76.7 | 108.0 | |
| T3 | 77.9 | 50.9 | 132.2 | 165.0 | |
| T4 | 119.2 | 110.9 | 156.1 | 21.0 | |
| T5 | 130.2 | 44.5 | 136.7 | 87.0 | |
| T6 | 106.8 | 77.5 | 111.0 | 27.0 | |
| T7 | 133.8 | 101.3 | 130.3 | 21.0 | |
| T8 | 108.9 | 82.7 | 120.0 | 21.0 | |
| T9 | 99.4 | 56.9 | 136.1 | 54.0 | |
| T10 | 158.1 | 135.9 | 151.0 | 0.0 | |
| T11 | 147.1 | 85.4 | 118.4 | 21.0 |
Anisotropic friction ellipse mu_x=1.10 / mu_y=1.20 (warm sport/trackday tires, dry track).
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