Laguna Seca

A left-hand kink at the end of the front straight with a 412.4 m effective radius and no measurable corner length or elevation change in the model. The simulation flags it flat out for every class: no braking, and entry, minimum and exit all read the same — 221 km/h (137 mph) for the supersport 600 and liter bike, 209 km/h (130 mph) for the middleweight twin. That makes it the fastest point on the simulated lap, and the reference line treats it as an extension of the straight rather than a corner. The next event on the profile is the braking zone for the Andretti Hairpin.

The Andretti Hairpin is a 159 m left with a 30.8 m effective radius, dropping 4.2 m (14 ft) on the way through. Braking begins 138 m out on the supersport 600, 147 m on the liter bike and 120 m on the twin, from a 91 km/h (56 mph) entry to a 69 km/h (43 mph) minimum shared by all three classes — the third-slowest point on the lap. The downhill exit lets the model build to 115 km/h (72 mph) on the 600 and liter bike and 113 km/h (70 mph) on the twin, a gain of roughly 47 km/h between the minimum and the corner exit.

Turn 3 opens the infield's pair of rights: 141 m long, 54.3 m effective radius, and level. It is a short braking event in the simulation — 45 m for the 600, 48 m for the liter bike, 36 m for the twin — from a 119 km/h (74 mph) entry to a 91 km/h (56 mph) minimum that is identical across classes, since radius rather than power sets the floor here. The estimated exit is 131 km/h (81 mph) on the two larger bikes and 129 km/h (80 mph) on the middleweight, and it carries straight into the approach to Turn 4.

The second right is the faster of the pair. Turn 4 runs 153 m, a little longer than Turn 3, and opens to a 95.6 m effective radius on level ground, so the simulated minimum rises to 120 km/h (75 mph) — about 30 km/h more than Turn 3. Entry is about 136 km/h (85 mph), with braking zones of 45 m on the supersport 600, 51 m on the liter bike and 30 m on the twin. The exit is where class power first shows on this lap: 158 km/h (98 mph) for the 600 and liter bike against 151 km/h (94 mph) for the twin, heading toward the climb that starts at Turn 5.

Turn 5 begins the climb: a 153 m left of 47.7 m effective radius that gains 5.3 m (17 ft), the biggest single rise on the card. It carries the longest braking zone in the infield — 105 m on the supersport 600, 129 m on the liter bike, 75 m on the twin — from a 122 km/h (76 mph) entry to an 85 km/h (53 mph) minimum. The model exits at 137 km/h (85 mph) on the two larger classes and 132 km/h (82 mph) on the middleweight twin, faster than it entered, with the uphill grade doing little to blunt the drive in the estimate.

Still climbing, Turn 6 is a 147 m left with a 73.6 m effective radius and 4.3 m (14 ft) of rise. Braking starts 72 m out on the 600, 90 m on the liter bike and 45 m on the twin from a 139 km/h (86 mph) entry, and the minimum settles at 106 km/h (66 mph). The estimated exit — 155 km/h (96 mph) for the supersport and liter bike, 147 km/h (91 mph) for the twin — is again above the entry speed, and it leads onto the run up the hill to Turn 7, where the Corkscrew braking zone begins well before the corner itself.

Turn 7 is the shortest corner on the card: 3 m of right-hand arc at a 246.5 m effective radius, essentially level. Its numbers are shaped by what follows. The brake marker the solver attaches to it — 120 m out on the 600, 150 m on the liter bike, 87 m on the twin — is the same marker it attaches to Turn 8, so the reference line is already deep in the Corkscrew braking zone here. It passes the Turn 7 apex at 92 km/h (57 mph), with entry and minimum identical, and exits slower still at 88 km/h (55 mph). It is the one corner on the lap where the line decelerates all the way through.

The Corkscrew's first element is the tightest corner on the circuit: a 51 m left at a 16.2 m effective radius, falling 3.3 m (11 ft) over the crest. The simulated braking zone is long — 120 m on the supersport 600, 150 m on the liter bike, 87 m on the twin — from a 92 km/h (57 mph) entry to a 50 km/h (31 mph) minimum, the slowest point anywhere on the lap and the same for every class. The exit reads 73 km/h (45 mph), well short of the entry speed, because the line is immediately turning back to the right into 8A.

8A is the right-hand second element, carded separately: 78 m long, 35.7 m effective radius, and a 10.7 m (35 ft) drop — the steep part of the Corkscrew. The two elements share one braking event; the brake marker the solver attaches to 8A sits 177 m upstream on the 600 (207 m on the liter bike, 144 m on the twin), the longest braking distance on the lap, which places it on the approach to Turn 7. From an 84 km/h (52 mph) entry the minimum is 74 km/h (46 mph), and the downhill exit builds to 129 km/h (80 mph) on the 600 and liter bike, 127 km/h (79 mph) on the twin, heading into Rainey Curve.

Rainey Curve is the longest corner on the card, 177 m of left-hand arc at a 72.7 m effective radius, and the biggest single descent on the lap at 15.0 m (49 ft). The simulation shows only a short dedicated braking zone — 39 m for the 600, 42 m for the liter bike, 33 m for the twin — from a 119 km/h (74 mph) entry, with the minimum at 105 km/h (65 mph) for all classes. The downhill exit reaches 147 km/h (91 mph) on the two larger bikes and 144 km/h (90 mph) on the middleweight twin before the profile settles for Turn 10.

Turn 10 is a 132 m right of 50.8 m effective radius, still descending — 4.4 m (14 ft) across its length. From a 122 km/h (76 mph) entry the model brakes for 51 m on the supersport 600, 57 m on the liter bike and 42 m on the twin, down to an 88 km/h (55 mph) minimum shared across classes. The estimated exit is 139 km/h (86 mph) for the 600 and liter bike, 135 km/h (84 mph) for the twin — above the entry speed, with the grade helping the drive toward the final corner.

The last corner is an 84 m left hairpin onto the front straight with a 19.5 m effective radius, nearly level at −0.7 m. The simulation brakes 87 m out on the 600, 96 m on the liter bike and 72 m on the twin from an 85 km/h (53 mph) entry to a 54 km/h (34 mph) minimum, the second-slowest point of the lap after the Corkscrew. The exit is 109 km/h (68 mph) on the two larger classes and 107 km/h (67 mph) on the twin; from here the reference line accelerates the full length of the straight to the flat-out Turn 1 kink.