| Cal Club Region Hoosier SCCA Super Tour @ Buttonwillow Raceway Park | Grp 5 PX,GT1,GT2,GTX,AS,T1 Race 2 | GT2 | 23 | Chevrolet Corvette | 4/8 | 1:59.950 | 1:51.640Oli Thordarson | +8.310s (7.44%) | 129.65/8 | 146.0Mike Henderson | -16.4 mph (-11.2%) |
| Cal Club Region Hoosier SCCA Super Tour @ Buttonwillow Raceway Park | Grp 5 PX,GT1,GT2,GTX,AS,T1 Race 1 | GT2 | 23 | Chevrolet Corvette | 5/6 | 2:07.285 | 1:53.420Oli Thordarson | +13.865s (12.22%) | 121.45/6 | 147.4Oli Thordarson | -26.0 mph (-17.6%) |
| Cal Club Region Hoosier SCCA Super Tour @ Buttonwillow Raceway Park | Grp 5 PX,GT1,GT2,GTX,AS,T1 Qual 2 | GT2 | 23 | Chevrolet Corvette | 5/6 | 2:01.489 | 1:51.490Darren Dilley | +9.999s (8.97%) | 124.45/6 | 145.6Oli Thordarson | -21.3 mph (-14.6%) |
| Buttonwillow Raceway Park 2018 | Grp 6 GT1,GT2,GT3,AS,T1 Race 2 | GT2 | 23 | Honda | 8/8 | 2:09.915 | 1:49.808Lee Arioto | +20.107s (18.31%) | | | |
| Buttonwillow Raceway Park 2018 | Grp 6 GT1,GT2,GT3,AS,T1 Race 1 | GT2 | 23 | Honda | 12/12 | 2:09.068 | 1:49.095William Brinkop | +19.973s (18.31%) | | | |
| Buttonwillow Raceway Park 2018 | Grp 6 GT1,GT2,GT3,AS,T1 Qual 2 | GT2 | 23 | Honda | 12/12 | 2:07.018 | 1:48.208William Brinkop | +18.810s (17.38%) | | | |