SM Tire limiting program
#28691 from Dan Goff · Taken care of · Minutes (2019-05 Fastrack)
Thank you for taking the time to respond to the WDYT. Please see response to initial request letter #27041 in the May Fastrack.
| Track | Class | Sessions | Typical gap to class best | Closest |
|---|---|---|---|---|
| Road America (4.05 mi) | SM | 35 | +9.635s (5.84%) | +2.781s (1.70%) |
| Circuit of the Americas (3.41 mi) | SM | 4 | +6.842s (4.28%) | +6.245s (3.89%) |
| Circuit of the Americas | SM | 1 |
Gap is the driver's best lap in a session against the fastest lap in their class in that same session (zero is fastest in class), shown as time lost and as a share of the lap, so conditions cancel out and tracks can be compared. Typical is the median session.
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Runoffs 2026 | SM National Championship Race | SM | 51 | Mazda Miata (1999) | 29/35 | 2:45.840 | 2:42.725Francisco Barroso | +3.115s (1.91%) | 116.225/35 | 119.6Wyatt Couch | -3.4 mph (-2.8%) |
| Runoffs 2026 | SM Qualifying 3 | SM | 51 | Mazda Miata (1999) | 33/34 | 2:49.563 | 2:42.173Brett Kowalski | +7.390s (4.56%) | 108.833/34 | 118.6Ryan Maloney | -9.8 mph (-8.2%) |
| Runoffs 2026 | SM Qualifying 2 | SM | 51 | Mazda Miata (1999) | 28/30 | 3:14.475 | 3:01.691Danny Steyn | +12.784s (7.04%) | 105.730/30 | 114.4Nick Leverone | -8.7 mph (-7.6%) |
| Runoffs 2026 | SM Qualifying 1 | SM | 51 | Mazda Miata (1999) | 22/26 | 3:18.650 | 3:04.138Christian Meyer | +14.512s (7.88%) | 103.025/26 | 111.9Elivan Goulart | -8.9 mph (-7.9%) |
| Runoffs 2026 | Wed Grp 7 SM Run 2 | SM | 51 | Mazda Miata (1999) | 23/24 | 3:10.093 | 2:49.986Christian Meyer | +20.107s (11.83%) | 108.822/24 | 114.8Andrew Devoto | -6.0 mph (-5.2%) |
| Runoffs 2026 | Wed Grp 7 SM Run 1 | SM | 51 | Mazda Miata (1999) | 21/21 | 3:25.575 | 3:01.502Christian Meyer | +24.073s (13.26%) | 97.521/21 | 113.8Danny Steyn | -16.3 mph (-14.3%) |
| Runoffs 2026 | Tue Grp 5 SM STL Run 3 | SM | 51 | Mazda Miata (1999) | 22/23 | 2:50.271 | 2:33.841Brett Kowalski | +16.430s (10.68%) | 112.722/23 | 129.7Brett Kowalski | -17.0 mph (-13.1%) |
| Runoffs 2026 | Tue Grp 5 SM STL Run 2 | SM | 51 | Mazda Miata (1999) | 19/20 | 2:48.626 | 2:43.632Tyler Brown | +4.994s (3.05%) | 115.613/20 | 118.7Cole Lucas | -3.2 mph (-2.7%) |
| Runoffs 2026 | Tue Grp 5 SM STL Run 1 | SM | 51 | Mazda Miata (1999) | 18/18 | 2:48.524 | 2:43.120James Newell | +5.404s (3.31%) | 114.417/18 | 118.9Elivan Goulart | -4.5 mph (-3.8%) |
| June Sprints 2026 | Grp 1 SM Race 2 | SM | 51 | Mazda Miata (1999) | 22/27 | 2:45.949 | 2:42.672Brett Kowalski | +3.277s (2.01%) | 115.525/27 | 119.0Michael Carter | -3.5 mph (-3.0%) |
| June Sprints 2026 | Grp 1 SM Race 1 | SM | 51 | Mazda Miata (1999) | 27/28 | 2:46.153 | 2:43.372Kyle Greenhill | +2.781s (1.70%) | 114.819/28 | 118.0Michael Carter | -3.1 mph (-2.7%) |
| June Sprints 2026 | Grp 1 SM Qual 2 | SM | 51 | Mazda Miata (1999) | 17/29 | 55.044 | 37.562Leland Werner | +17.482s (46.54%) | 117.64/29 | 119.2Danny Steyn | -1.5 mph (-1.3%) |
| June Sprints 2026 | Grp 1 SM Qual 1 | SM | 51 | Mazda Miata (1999) | 22/27 | 3:14.954 | 3:02.335Sean Varwig | +12.619s (6.92%) | 110.312/27 | 113.9Danny Steyn | -3.5 mph (-3.1%) |
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 2 SM Race 2 | SM | 161 | Mazda Miata | 53/41 | 2:44.328Jim Drago | |||||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 2 SM Race 1 | SM | 161 | Mazda Miata | 53/46 | 2:45.674Charles Mactutus | |||||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 2 SM Qual 2 | SM | 161 | Mazda Miata | 54/52 | 2:43.947Connor Zilisch | |||||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 2 SM Qual 1 | SM | 161 | Mazda Miata | 51/51 | 3:10.991 | 2:45.156Travis Wiley | +25.835s (15.64%) | |||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 2 SM Prac | SM | 161 | Mazda Miata | 51/50 | 2:44.388Travis Wiley | |||||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Afternoon | SM | 161 | Mazda Miata | 13/12 | 2:45.551Brandon Collins | |||||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Thurs. Test | SM | 161 | Mazda Miata | 27/27 | 5:13.676 | 2:21.731Brandon Collins | +171.945s (121.32%) | |||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 5 SM Race 2 | SM | 16 | Mazda Miata | 68/63 | 2:43.195Preston Pardus | |||||
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 5 SM Race 1 | SM | 16 | Mazda Miata | 44/69 | 2:48.362 | 2:41.725Justin Casey No_Transponder | +6.637s (4.10%) | 116.638/68 | 120.4Jeff Luckritz | -3.8 mph (-3.1%) |
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 5 SM Qual 2 | SM | 16 | Mazda Miata | 57/71 | 2:49.681 | 2:42.295Tom Brown | +7.386s (4.55%) | 116.032/71 | 119.5Todd Buras | -3.6 mph (-3.0%) |
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 5 SM Qual 1 | SM | 16 | Mazda Miata | 56/68 | 2:52.156 | 2:41.974Preston Pardus | +10.182s (6.29%) | 116.821/68 | 119.5Chris Haldeman | -2.7 mph (-2.3%) |
| Chicago Region Hoosier SCCA Super Tour @ Road America | Grp 5 SM Practice | SM | 16 | Mazda Miata | 55/66 | 2:50.661 | 2:42.127Preston Pardus | +8.534s (5.26%) | 0.855/65 | 0.8Preston Pardus | -0.0 mph (-5.2%) |
| June Sprints® Hoosier Super Tour (Chicago Region) | Grp 2 SM Race 2 | SM | 161 | Mazda Miata | 39/51 | 2:53.330 | 2:43.207Tyler Brown | +10.123s (6.20%) | 111.242/51 | 119.4Jim Drago | -8.1 mph (-6.8%) |
| June Sprints® Hoosier Super Tour (Chicago Region) | Grp 2 SM Race 1 | SM | 161 | Mazda Miata | 50/53 | 2:52.007 | 2:43.238Tyler Brown | +8.769s (5.37%) | 115.327/53 | 119.4Michael Gagliardo | -4.0 mph (-3.4%) |
| June Sprints® Hoosier Super Tour (Chicago Region) | Grp 2 SM Qual 2 | SM | 161 | Mazda Miata | 35/54 | 2:49.256 | 2:43.545Peter Ensor | +5.711s (3.49%) | |||
| June Sprints® Hoosier Super Tour (Chicago Region) | Grp 2 SM Qual 1 | SM | 161 | Mazda Miata | 53/52 | 2:12.325Voytek Burdzy | |||||
| June Sprints® Hoosier Super Tour (Chicago Region) | Grp 2 SM Prac | SM | 161 | Mazda Miata | 43/51 | 2:55.729 | 2:44.149Todd Buras | +11.580s (7.05%) | 114.732/51 | 120.2Jim Drago | -5.6 mph (-4.6%) |
| America 2018 | Grp 3 SM Race 2 | SM | 16 | Mazda Miata | 32/44 | 2:54.753 | 2:45.118Danny Steyn | +9.635s (5.84%) | |||
| America 2018 | Grp 3 SM Race 1 | SM | 16 | Mazda Miata | 39/43 | 2:54.391 | 2:45.194Voytek Burdzy | +9.197s (5.57%) | |||
| America 2018 | Grp 3 SM Qual 2 | SM | 16 | Mazda Miata | 39/46 | 2:53.046 | 2:44.016Daniel Bender | +9.030s (5.51%) | |||
| America 2018 | Grp 3 SM Qual 1 | SM | 16 | Mazda Miata | 42/44 | 2:56.013 | 2:43.395Jim Drago | +12.618s (7.72%) | |||
| America 2018 | Grp 3 SM Prac | SM | 16 | Mazda Miata | 44/45 | 3:00.907 | 2:43.500Danny Steyn | +17.407s (10.65%) |
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lone Star Grand Prix 2021 | Grp 4 SM,B-Spec Race 2 | SM | 161 | Mazda Miata | 42/43 | 2:48.618 | 2:40.136Jim Drago | +8.482s (5.30%) | 112.235/43 | 117.7Tyler Quance | -5.5 mph (-4.7%) |
| Lone Star Grand Prix 2021 | Grp 4 SM,B-Spec Race 1 | SM | 161 | Mazda Miata | 28/44 | 2:46.667 | 2:40.422Jim Drago | +6.245s (3.89%) | 112.228/43 | 115.9Tyler Quance | -3.7 mph (-3.2%) |
| Lone Star Grand Prix 2021 | Grp 4 SM,B-Spec Qual 1 | SM | 161 | Mazda Miata | 34/45 | 2:46.629 | 2:39.787Tyler Quance | +6.842s (4.28%) | 110.238/44 | 117.5Chris Haldeman | -7.3 mph (-6.2%) |
| Lone Star Grand Prix 2021 | Friday Test 5 | SM | 161 | Mazda Miata | 24/29 | 2:48.277 | 2:40.000Chris Haldeman | +8.277s (5.17%) | 0.48/8 | 0.4Logan Stretch | -0.0 mph (-4.3%) |
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lone Star Grand Prix 2021 | Grp 4 SM,B-Spec Qual 2 | SM | 161 | Mazda Miata | 43/1 | 3:22.086Matt Fassnacht |
#28691 from Dan Goff · Taken care of · Minutes (2019-05 Fastrack)
Thank you for taking the time to respond to the WDYT. Please see response to initial request letter #27041 in the May Fastrack.