Harris Hill Raceway (Counter-clockwise)
San Marcos, Texas · 2.93 km · 1.82 mi · counterclockwise
This is Harris Hill Raceway in San Marcos, Texas run in its Counter-clockwise layout: the same 2,929 m (1.82 mi) loop reversed, with the clockwise turn numbers kept in reverse order — Turn 11 is the first corner after the straight and Turn 1 the last — and every side flipped, giving seven lefts and four rights. The lap climbs 25.9 m (85 ft) in total. Every speed, distance and lap time here is a physics-simulation estimate from track geometry, not measured data. The reference line runs the Turn 6 kink without braking at up to 190 km/h (118 mph), and bottoms at 71 km/h (44 mph) in Turn 10 and 74 km/h (46 mph) in Turn 4. Simulated laps: 1:15.4 liter bike, 1:15.7 supersport 600, 1:17.1 middleweight twin.
All figures: physics-simulation estimates · generated 2026-10-02 · methodology & assumptions
Track outline © OpenStreetMap contributors (ODbL)
Harris Hill Raceway (Counter-clockwise) — quick facts
Motorcycle track guide · simulation estimates · 2026-10-02
- Layout: Counter-clockwise — 2,929 m (1.82 mi) in the track model, 11 corners carded 11 down to 1: 7 left, 4 right
- Simulated lap estimates: 1:15.4 liter bike / 1:15.7 supersport 600 / 1:17.1 middleweight twin
- Simulated average speed: 133.8–136.9 km/h (83–85 mph) depending on bike class
- Slowest simulated points: Turn 10 at a 71 km/h (44 mph) minimum, then Turn 4 (Santa Rita) at 74 km/h (46 mph)
- Fastest simulated point: the Turn 6 kink, no braking, 190 km/h (118 mph) exit on the liter bike
- Tightest radius: Turn 10 at 33.4 m; largest: the Turn 6 kink at 234.6 m
- Longest simulated brake zone: 177 m before Turn 2 on the liter bike (153 m on the 600, 120 m on the twin)
- Biggest climb: Turn 5 rises 8.2 m (27 ft); biggest descent: Turn 4 drops 5.8 m (19 ft)
Turn 11
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 174 km/h108 mph | 160 km/h99 mph | 165 km/h103 mph | 33 m108 ft | 169 m554 ft | +0.5 m+2 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 10
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 88 km/h54 mph | 71 km/h44 mph | 126 km/h78 mph | 75 m246 ft | 33 m110 ft | -2.7 m-9 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 9
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 163 km/h101 mph | 160 km/h99 mph | 178 km/h110 mph | 0 m0 ft | 168 m551 ft | +0.2 m+1 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 8
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 132 km/h82 mph | 117 km/h73 mph | 155 km/h96 mph | 66 m217 ft | 90 m296 ft | -2.7 m-9 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 7
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 111 km/h69 mph | 80 km/h50 mph | 140 km/h87 mph | 63 m207 ft | 43 m140 ft | +3.6 m+12 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 6
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 182 km/h113 mph | 182 km/h113 mph | 188 km/h117 mph | 0 m0 ft | 235 m770 ft | +0.3 m+1 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 113 km/h70 mph | 94 km/h59 mph | 118 km/h74 mph | 111 m364 ft | 59 m194 ft | +8.2 m+27 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 5 is a 168 m right of 59.1 m effective radius and the biggest climb on the lap, rising 8.2 m (27 ft). It carries the second-longest braking zone in this direction, behind Turn 2: 111 m on the supersport 600, 126 m on the liter bike, 87 m on the twin, from a 112.8 km/h (70 mph) entry to a 94.5 km/h (59 mph) minimum. The exit is only a little higher than the entry — 118.4 km/h (74 mph) on the two larger bikes, 117.2 km/h (73 mph) on the twin — as the grade holds the drive in check and the profile is already settling for Santa Rita.
Turn 4 — Santa Rita
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 100 km/h62 mph | 74 km/h46 mph | 161 km/h100 mph | 24 m79 ft | 36 m118 ft | -5.8 m-19 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 127 km/h79 mph | 107 km/h67 mph | 108 km/h67 mph | 108 m354 ft | 76 m248 ft | +0.2 m+1 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 3 is the shortest corner on the card after the Turn 6 kink: 48 m of left-hand arc at a 75.5 m effective radius, level to within 0.2 m. The simulation reaches it at 127.1 km/h (79 mph) with braking that begins 108 m out on the supersport 600, 132 m on the liter bike and 75 m on the twin, and touches a 107.2 km/h (67 mph) minimum. The exit reads 108.4 km/h (67 mph), barely above the minimum, because the reference line is still gathering itself for Turn 2: that corner's brake marker sits upstream of this one, and the two form a single braking event in the model.
Turn 2
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 108 km/h67 mph | 103 km/h64 mph | 143 km/h89 mph | 153 m502 ft | 71 m232 ft | +1.7 m+6 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 2 is a 141 m left of 70.6 m effective radius, rising 1.7 m (6 ft). Its brake markers — 153 m on the supersport 600, 177 m on the liter bike, 120 m on the twin — are the longest on the lap, but they measure back through Turn 3 to the approach from Santa Rita rather than a dedicated zone of that length. From a 107.8 km/h (67 mph) entry the minimum is 103.4 km/h (64 mph) in every class, and the exit builds to 142.9 km/h (89 mph) on the two larger bikes and 138.5 km/h (86 mph) on the twin toward the last corner.
Turn 1
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 179 km/h111 mph | 168 km/h105 mph | 174 km/h108 mph | 12 m39 ft | 187 m613 ft | -2.0 m-7 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed