SM Tire Limiting Proposal
#28592 from John Somner · 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.
BoP Lab / Drivers / John Somner
John Somner 1 letter to Fastrack
Against the front of the class, by track and class
| Track | Class | Sessions | Typical gap to class best | Closest |
|---|---|---|---|---|
| Michelin Raceway Road Atlanta (2.54 mi) | SM | 14 | +2.678s (2.63%) | +1.816s (1.77%) |
| Circuit of the Americas (3.41 mi) | SM | 23 | +4.258s (2.65%) | +2.496s (1.56%) |
| Circuit of the Americas | SM | 1 | ||
| Sebring International Raceway (3.74 mi) | SM | 21 | +4.320s (2.77%) | +2.243s (1.45%) |
| Road America (4.05 mi) | SM | 4 | +4.760s (2.93%) | +4.698s (2.87%) |
| Unknown track (4.05 mi) | SM | 7 | +5.910s (3.61%) | +4.957s (3.05%) |
| Unknown track | SM | 1 | +4.957s (3.05%) | +4.957s (3.05%) |
| NOLA Motorsports Park (2.75 mi) | SM | 9 | +2.873s (2.42%) | +0.873s (0.74%) |
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.
Michelin Raceway Road Atlanta (2.54 mi)
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta | Grp 4 SM Race 2 | SM | 45 | Mazda Miata | 34/62 | 1:44.838 | 1:42.564Preston Pardus | +2.274s (2.22%) | 110.423/61 | 111.9Junior Brock | -1.6 mph (-1.4%) |
| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta | Grp 4 SM Race 1 | SM | 45 | Mazda Miata | 32/67 | 1:44.577 | 1:42.752Danny Steyn | +1.825s (1.78%) | |||
| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta | Grp 4 SM Qual 2 | SM | 45 | Mazda Miata | 28/65 | 1:44.476 | 1:41.798Danny Steyn | +2.678s (2.63%) | 110.124/65 | 113.6Marc Cefalo | -3.5 mph (-3.1%) |
| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta | Grp 4 SM Qual 1 | SM | 45 | Mazda Miata | 24/67 | 1:44.498 | 1:42.682Elivan Goulart | +1.816s (1.77%) | 111.12/67 | 111.5John Raudat | -0.4 mph (-0.4%) |
| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta | Grp 4 SM Practice | SM | 45 | Mazda Miata | 29/61 | 1:45.117 | 13.798Kyle Greenhill | +91.319s (661.83%) | 109.719/61 | 111.2Broderick Bauguess | -1.5 mph (-1.4%) |
| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta | Morning Test | SM | 45 | Mazda Miata | 17/28 | 1:48.247 | 1:38.891M Yusuf Mohamed | +9.356s (9.46%) | |||
| SARRC 2020 | Grp 2 SM, SMSE, SMT, SMSE-T Race 2 | SM | 45 | Mazda Miata | 15/30 | 1:46.759 | 1:43.352Jim Drago | +3.407s (3.30%) | 108.214/30 | 110.9Jim Drago | -2.8 mph (-2.5%) |
| SARRC 2020 | Grp 2 SM, SMSE, SMT, SMSE-T Qual 2 | SM | 45 | Mazda Miata | 16/24 | 1:46.701 | 1:43.621Broderick Bauguess | +3.080s (2.97%) | 108.29/24 | 109.4Charles Mactutus | -1.2 mph (-1.1%) |
| SARRC 2020 | Grp 2 SM, SMSE, SMT, SMSE-T Race 1 | SM | 45 | Mazda Miata | 21/33 | 1:48.574 | 1:44.065Chris Haldeman | +4.509s (4.33%) | 104.927/33 | 109.8Scott Carlisle | -4.9 mph (-4.5%) |
| SARRC 2020 | Grp 2 SM, SMSE, SMT, SMSE-T Qual 1 | SM | 45 | Mazda Miata | 24/33 | 1:46.446 | 1:42.365Chris Haldeman | +4.081s (3.99%) | 105.428/33 | 110.9Chris Haldeman | -5.5 mph (-5.0%) |
| SARRC 2020 | GR3 | SM | 45 | Mazda Miata | 2/25 | 1:39.191 | 1:37.199Christopher Shaffer | +1.992s (2.05%) | 116.63/21 | 121.4Broderick Bauguess | -4.7 mph (-3.9%) |
| Atlanta Region 2019 | Grp 4 SM Race 2 | SM | 45 | Mazda Miata | 17/40 | 1:45.470 | 1:42.915Chris Haldeman | +2.555s (2.48%) | 109.122/40 | 112.1Jim Drago | -3.0 mph (-2.6%) |
| Atlanta Region 2019 | Grp 4 SM Race 1 | SM | 45 | Mazda Miata | 40/40 | 1:44.884 | 1:42.464Preston Pardus | +2.420s (2.36%) | 109.016/40 | 111.7Jim Drago | -2.7 mph (-2.4%) |
| Atlanta Region 2019 | GRP 4 SM Qual 2 | SM | 45 | Mazda Miata | 19/42 | 1:45.008 | 1:42.220Danny Steyn | +2.788s (2.73%) | 110.58/42 | 112.1Danny Steyn | -1.6 mph (-1.4%) |
Circuit of the Americas (3.41 mi)
| 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 | 45 | Mazda Miata | 20/43 | 2:42.632 | 2:40.136Jim Drago | +2.496s (1.56%) | 112.830/43 | 117.7Tyler Quance | -4.9 mph (-4.2%) |
| Lone Star Grand Prix 2021 | Grp 4 SM,B-Spec Race 1 | SM | 45 | Mazda Miata | 21/44 | 2:43.703 | 2:40.422Jim Drago | +3.281s (2.05%) | 112.427/43 | 115.9Tyler Quance | -3.5 mph (-3.0%) |
| Lone Star Grand Prix 2021 | Grp 4 SM,B-Spec Qual 1 | SM | 45 | Mazda Miata | 20/45 | 2:42.905 | 2:39.787Tyler Quance | +3.118s (1.95%) | 113.317/44 | 117.5Chris Haldeman | -4.2 mph (-3.5%) |
| Lone Star Grand Prix 2021 | Friday Test 5 | SM | 45 | Mazda Miata | 12/29 | 2:45.330 | 2:40.000Chris Haldeman | +5.330s (3.33%) | |||
| Lone Star Region Hoosier SCCA Super Tour @ Circuit of the Americas | Grp 3 SM, B-Spec, GTL Race 2 | SM | 45 | Mazda Miata | 43/42 | 2:52.386Nick Leverone | |||||
| Lone Star Region Hoosier SCCA Super Tour @ Circuit of the Americas | Grp 3 SM, B-Spec, GTL Qual 2 | SM | 45 | Mazda Miata | 37/31 | 2:57.278Matt Reynolds | |||||
| Lone Star Region Hoosier SCCA Super Tour @ Circuit of the Americas | Grp 3 SM, B-Spec Race 1 | SM | 45 | Mazda Miata | 20/42 | 2:43.811 | 2:40.451Jim Drago | +3.360s (2.09%) | 116.313/42 | 118.3Nick Leverone | -2.1 mph (-1.7%) |
| Lone Star Region Hoosier SCCA Super Tour @ Circuit of the Americas | Grp 2 SM, B-Spec, GTL Qual 1 | SM | 45 | Mazda Miata | 25/42 | 2:44.229 | 2:38.975Jim Drago | +5.254s (3.30%) | 112.826/42 | 118.1Lee Thomas | -5.4 mph (-4.5%) |
| Polar Prix 2019 | Grp 4 SM Race 2 | SM | 22 | Mazda Miata | 17/35 | 3:00.143 | 2:41.758Sam Craven | +18.385s (11.37%) | 109.817/35 | 113.0Matt Reynolds | -3.1 mph (-2.8%) |
| Polar Prix 2019 | GRP 4 SM Race 1 | SM | 22 | Mazda Miata | 33/36 | 2:43.747 | 2:40.889Tyler Quance | +2.858s (1.78%) | 113.916/36 | 117.7Joe Alan Stubblefield | -3.8 mph (-3.2%) |
| Polar Prix 2019 | GRP 4 SM Qual 2 | SM | 22 | Mazda Miata | 22/18 | 2:58.357Danny Steyn | |||||
| Polar Prix 2019 | GRP 4 SM Qual 1 | SM | 22 | Mazda Miata | 20/36 | 2:43.709 | 2:39.832Jim Drago | +3.877s (2.43%) | 114.116/36 | 117.9Danny Steyn | -3.8 mph (-3.2%) |
| Polar Prix 2019 | Grp 4 SM Practice | SM | 22 | Mazda Miata | 32/32 | 3:33.909 | 2:41.014Danny Steyn | +52.895s (32.85%) | 99.930/30 | 117.5Danny Steyn | -17.7 mph (-15.0%) |
| Circuit Americas 2018 | GRP 4 SM Race 2 | SM | 45 | Mazda Miata (1999) | 44/48 | 2:45.959 | 2:41.839Chris Haldeman | +4.120s (2.55%) | 115.97/48 | 117.5Tyler Quance | -1.6 mph (-1.4%) |
| Circuit Americas 2018 | GRP 4 SM Race 1 | SM | 45 | Mazda Miata (1999) | 17/54 | 2:50.644 | 2:46.792Thomas Martin | +3.852s (2.31%) | 112.83/54 | 114.7Tyler Quance | -1.9 mph (-1.7%) |
| Circuit Americas 2018 | GRP 4 SM Qual 2 | SM | 45 | Mazda Miata (1999) | 21/29 | 3:17.693 | 3:03.098Nick Leverone | +14.595s (7.97%) | 92.321/29 | 108.6Daniel Williams | -16.3 mph (-15.0%) |
| Circuit Americas 2018 | GRP 4 SM Qual 1 | SM | 45 | Mazda Miata (1999) | 30/55 | 2:44.058 | 2:40.183Michael Ross | +3.875s (2.42%) | 114.526/55 | 118.6Michael Ross | -4.0 mph (-3.4%) |
| Circuit Americas 2018 | Grp 4 SM Practice | SM | 45 | Mazda Miata (1999) | 19/53 | 2:44.698 | 2:40.440Chris Haldeman | +4.258s (2.65%) | 115.310/53 | 117.5Lee Thomas | -2.2 mph (-1.9%) |
| Circuit Americas 2017 | Grp 1 SM Race 2 | SM | 15 | CnLa | 27/42 | 2:46.804 | 2:40.640Jim Drago | +6.164s (3.84%) | |||
| Circuit Americas 2017 | Grp 1 SM Race 1 | SM | 15 | CnLa | 42/43 | 2:46.048 | 2:40.809Jim Drago | +5.239s (3.26%) | |||
| Circuit Americas 2017 | Grp 1 SM Qual 2 | SM | 15 | CnLa | 32/45 | 2:46.190 | 2:40.465Andrew Charbonneau | +5.725s (3.57%) | |||
| Circuit Americas 2017 | Grp 1 SM Qual 1 | SM | 15 | CnLa | 21/44 | 2:46.807 | 2:42.304Jim Drago | +4.503s (2.77%) | |||
| Circuit Americas 2017 | Grp 1 SM Prac | SM | 15 | CnLa | 29/42 | 2:48.453 | 2:40.900Jim Drago | +7.553s (4.69%) |
Circuit of the Americas
| 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 | 45 | Mazda Miata | 18/1 | 3:22.086Matt Fassnacht |
Sebring International Raceway (3.74 mi)
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SIR 2021 | Grp 1 SM Race 2 | SM | 45 | Mazda Miata (1999) | 66/67 | 2:37.003 | 2:32.459Matt Fassnacht | +4.544s (2.98%) | 106.042/65 | 108.5Marc Cefalo | -2.5 mph (-2.3%) |
| SIR 2021 | Grp 1 SM Race 1 | SM | 45 | Mazda Miata (1999) | 30/68 | 2:37.345 | 2:34.795Elivan Goulart | +2.550s (1.65%) | 106.819/68 | 108.4Konrad Czaczyk | -1.5 mph (-1.4%) |
| SIR 2021 | Grp 1 SM Qual 2 | SM | 45 | Mazda Miata (1999) | 50/67 | 2:41.224 | 2:34.474Elivan Goulart | +6.750s (4.37%) | 104.834/67 | 108.2Marc Cefalo | -3.4 mph (-3.2%) |
| SIR 2021 | Grp 1 SM Qual 1 | SM | 45 | Mazda Miata (1999) | 19/68 | 2:37.961 | 2:35.485Preston Pardus | +2.476s (1.59%) | |||
| SIR 2021 | Grp 1 SM Practice | SM | 45 | Mazda Miata (1999) | 22/67 | 2:37.079 | 2:34.246Preston Pardus | +2.833s (1.84%) | |||
| Hoosier SCCA Super Tour (Central Florida Region) | Grp 4 SM Race 2 | SM | 45 | Mazda Miata | 59/58 | 2:36.712Todd Buras | |||||
| Hoosier SCCA Super Tour (Central Florida Region) | Grp 4 SM Race 1 | SM | 45 | Mazda Miata | 32/62 | 2:40.285 | 2:35.965Jim Drago | +4.320s (2.77%) | 105.631/62 | 107.2Michael Carter | -1.6 mph (-1.5%) |
| Hoosier SCCA Super Tour (Central Florida Region) | Grp 4 SM Qual 2 | SM | 45 | Mazda Miata | 37/61 | 2:39.116 | 2:34.601Preston Pardus | +4.515s (2.92%) | 104.051/61 | 108.6Jim Drago | -4.6 mph (-4.3%) |
| Hoosier SCCA Super Tour (Central Florida Region) | Grp 4 SM Qual 1 | SM | 45 | Mazda Miata | 59/60 | 2:47.813 | 2:35.075Michael Carter | +12.738s (8.21%) | 104.938/60 | 108.5Todd Buras | -3.6 mph (-3.3%) |
| Hoosier SCCA Super Tour (Central Florida Region) | Grp 4 SM Practice | SM | 45 | Mazda Miata | 16/59 | 2:37.829 | 2:34.841Preston Pardus | +2.988s (1.93%) | 105.323/59 | 107.1Michael Carter | -1.8 mph (-1.7%) |
| Hoosier SCCA Super Tour (Central Florida Region) | Thursday Test | SM | 45 | Mazda Miata | 6/13 | 2:38.601 | 2:00.893Michael Ross | +37.708s (31.19%) | 105.18/13 | 138.7Michael Ross | -33.6 mph (-24.2%) |
| Sebring International Raceway 2018 | Grp 2 SM Race 2 | SM | 45 | Mazda Miata | 55/59 | 2:37.342 | 2:35.099Michael Carter | +2.243s (1.45%) | |||
| Sebring International Raceway 2018 | Grp 2 SM Race 1 | SM | 45 | Mazda Miata | 32/60 | 2:39.437 | 2:35.836Preston Pardus | +3.601s (2.31%) | |||
| Sebring International Raceway 2018 | Grp 2 SM Qual 2 | SM | 45 | Mazda Miata | 31/62 | 2:38.293 | 2:34.751Christopher Haldeman | +3.542s (2.29%) | |||
| Sebring International Raceway 2018 | Grp 2 SM Qual 1 | SM | 45 | 465598 | 29/62 | 2:41.199 | 2:37.700Michael Carter | +3.499s (2.22%) | |||
| Sebring International Raceway 2018 | Grp 2 SM Practice | SM | 45 | 465598 | 32/61 | 2:40.002 | 36.766Kelsey Patterson | +123.236s (335.19%) | |||
| Sebring 2017 | Grp 4 Race 2 | SM | 115 | 465598 | 40/71 | 2:40.570 | 2:35.629Jim Drago | +4.941s (3.17%) | |||
| Sebring 2017 | Grp 4 Race 1 | SM | 115 | 465598 | 47/76 | 2:41.089 | 2:35.744Todd Lamb | +5.345s (3.43%) | |||
| Sebring 2017 | Grp 4 Qualifying 2 | SM | 115 | 465598 | 41/78 | 2:40.857 | 2:36.246Alex Bolanos | +4.611s (2.95%) | |||
| Sebring 2017 | Grp 4 Qualifying 1 | SM | 115 | 465598 | 30/77 | 2:40.305 | 2:36.075Jim Drago | +4.230s (2.71%) | |||
| Sebring 2017 | Grp 4 Practice | SM | 115 | 465598 | 42/77 | 2:40.464 | 2:35.671Danny Steyn | +4.793s (3.08%) |
Road America (4.05 mi)
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Runoffs 2020 | SM Race | SM | 45 | Mazda Miata | 38/75 | 2:48.446 | 2:43.748Preston Pardus | +4.698s (2.87%) | 116.660/75 | 121.3Kyle Greenhill | -4.7 mph (-3.9%) |
| Runoffs 2020 | SM Qual 3 | SM | 45 | Mazda Miata | 55/76 | 2:46.969 | 2:42.209Kyle Greenhill | +4.760s (2.93%) | 115.855/75 | 120.1Jonathan Davis | -4.3 mph (-3.5%) |
| Runoffs 2020 | SM Qual 2 | SM | 45 | Mazda Miata | 77/77 | 4:51.511 | 2:42.965Preston Pardus | +128.546s (78.88%) | 60.577/77 | 119.2Michael Ross | -58.7 mph (-49.3%) |
| Runoffs 2020 | SM Qual 1 | SM | 45 | Mazda Miata | 68/75 | 2:50.209 | 2:43.064Chris Haldeman | +7.145s (4.38%) | 111.770/75 | 119.2Kyle Greenhill | -7.5 mph (-6.3%) |
Unknown track (4.05 mi)
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Runoffs 2020 | Grp 5 Run 3 SM,STL | SM | 45 | Mazda Miata | 43/52 | 2:49.574 | 2:43.905Tyler Brown | +5.669s (3.46%) | 114.844/52 | 121.1Preston Pardus | -6.3 mph (-5.2%) |
| Runoffs 2020 | Grp 5 Run 2 SM,STL | SM | 45 | Mazda Miata | 36/51 | 2:48.964 | 2:42.894Jim Drago | +6.070s (3.73%) | 116.135/51 | 121.1Todd Buras | -5.0 mph (-4.1%) |
| Runoffs 2020 | Grp 5 Run 1 SM,STL | SM | 45 | Mazda Miata | 24/48 | 2:47.336 | 2:41.471Brad Perez | +5.865s (3.63%) | 115.234/48 | 128.6Brad Perez | -13.4 mph (-10.4%) |
| Runoffs 2020 | Grp 5 Run 4 SM,T3,T4,B-Spec | SM | 45 | Mazda Miata | 22/31 | 2:47.505 | 2:42.548Danny Steyn | +4.957s (3.05%) | 113.425/31 | 119.5Danny Steyn | -6.1 mph (-5.1%) |
| Runoffs 2020 | Grp 5 Run 3 SM,T3,T4,B-Spec | SM | 45 | Mazda Miata | 23/31 | 2:47.648 | 20.219Andrew Devoto | +147.429s (729.16%) | 112.923/31 | 119.0Chris Haldeman | -6.1 mph (-5.1%) |
| Runoffs 2020 | Grp 5 Run 2 SM,T3,T4,B-Spec | SM | 45 | Mazda Miata | 26/31 | 2:48.696 | 2:43.520Chris Haldeman | +5.176s (3.17%) | 111.825/29 | 117.3Anthony Geraci | -5.5 mph (-4.7%) |
| Runoffs 2020 | Grp 5 Run 1 SM,T3,T4,B-Spec | SM | 45 | Mazda Miata | 19/29 | 2:49.808 | 2:43.898Danny Steyn | +5.910s (3.61%) | 112.517/27 | 117.3Danny Steyn | -4.8 mph (-4.1%) |
Unknown track
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Runoffs 2020 | Grp 5 Run 4 SM,T3,T4,B-Spec | SM | 45 | Mazda Miata | 22/31 | 2:47.505 | 2:42.548Danny Steyn | +4.957s (3.05%) | 113.425/31 | 119.5Danny Steyn | -6.1 mph (-5.1%) |
NOLA Motorsports Park (2.75 mi)
| Event | Session | Class | # | Car | Pos | Best lap | Class best | To class best | Trap | Class trap | To class trap |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NOLA Motorsports Park 2018 | Grp 4 SM Race 2 | SM | 45 | Mazda Miata (1999) | 17/36 | 2:02.666 | 1:59.724Michael Carter | +2.942s (2.46%) | |||
| NOLA Motorsports Park 2018 | Grp 4 SM Qual 2 | SM | 45 | Mazda Miata (1999) | 14/37 | 2:00.486 | 1:58.671Chris Haldeman | +1.815s (1.53%) | |||
| NOLA Motorsports Park 2018 | Grp 4 SM Race 1 | SM | 45 | Mazda Miata (1999) | 36/35 | 1:59.483Chris Haldeman | |||||
| NOLA Motorsports Park 2018 | Grp 4 SM Qual 1 | SM | 45 | Mazda Miata (1999) | 4/33 | 1:59.548 | 1:58.675Danny Steyn | +0.873s (0.74%) | |||
| Voodoo Quartre NOLA Motorsports Park 2017 | Grp 4 Race 2 | SM | 15 | CnLa | 15/33 | 2:01.901 | 1:58.956Michael Carter | +2.945s (2.48%) | |||
| Voodoo Quartre NOLA Motorsports Park 2017 | Grp 4 Qualifying 2 | SM | 15 | CnLa | 17/40 | 2:00.790 | 1:58.229Michael Carter | +2.561s (2.17%) | |||
| Voodoo Quartre NOLA Motorsports Park 2017 | Grp 4 Race 1 | SM | 15 | CnLa | 39/43 | 2:02.509 | 1:58.874Justin Hille | +3.635s (3.06%) | |||
| Voodoo Quartre NOLA Motorsports Park 2017 | Grp 4 Qualifying 1 | SM | 15 | CnLa | 22/44 | 2:01.556 | 1:58.683Chris Haldeman | +2.873s (2.42%) | |||
| Voodoo Quartre NOLA Motorsports Park 2017 | Grp 4 Practice | SM | 15 | CnLa | 19/43 | 2:01.595 | 1:58.689Blake Clements | +2.906s (2.45%) |