TENTHS
Leeds, Alabama

Barber Motorsports Park

3717 m · 19 corners · reference lap 1:46.73 (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.

Where the lap is won

Three places to look first

Biggest braking event

Turn 12: 173.9 → 106.7 km/h over 48.0 m. Brake-point consistency here is worth more than anywhere else on the lap.

Commitment corner

Turn 4: reference minimum 131.5 km/h. Fast corners punish hesitation — min-speed spread here is the classic amateur time leak.

Slowest corner

Turn 6: 60.9 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 123.4 104.7 142.6 57.0
T2 111.2 67.3 82.0 36.0
T3 83.5 79.7 131.5 6.0
T4 131.5 131.5 163.0 6.0
T5 Charlotte's Web 108.9 63.5 62.3 39.0
T6 62.3 60.9 121.3 30.0
T7 114.2 109.0 126.5 15.0
T8 162.4 99.4 118.4 75.0
T9 124.6 96.2 91.3 6.0
T9 87.2 61.4 145.4 39.0
T10 122.3 91.1 94.2 81.0
T11 97.1 93.6 137.9 18.0
T12 173.9 106.7 123.0 48.0
T13 113.3 81.3 97.3 9.0
T14 130.0 106.4 120.8 15.0
T15 130.6 97.1 96.7 18.0
T16 99.2 76.4 88.1 18.0
T16 88.1 88.1 120.5 78.0
T17 134.4 71.3 122.5 9.0

Anisotropic friction ellipse mu_x=1.10 / mu_y=1.20 (warm sport/trackday tires, dry track).

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