Bommarito Automotive Group 500
World Wide Technology Raceway at Gateway
1.25 Mile Paved Oval
260 Laps/325 Miles
August 21, 2021
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status | Points |
| 1 | 3 | Josef Newgarden | 2 | Sonsio | Dallara UAK 18 | Chevy | 260 | 2:24:10.9404 135.245 | 53 |
| 2 | 5 | Patricio O'Ward | 5 | Arrow Electronics/Vuse | Dallara UAK 18 | Chevy | 260 | 2:24:11.4801 135.237 | 41 |
| 3 | 1 | Will Power | 12 | Verizon 5G | Dallara UAK 18 | Chevy | 260 | 2:24:16.8064 135.154 | 37 |
| 4 | 11 | Scott McLaughlin | 3 | DEX Imaging | Dallara UAK 18 | Chevy | 260 | 2:24:17.6024 135.141 | 32 |
| 5 | 18 | Sébastien Bourdais | 14 | ROKiT | Dallara UAK 18 | Chevy | 260 | 2:24:18.7364 135.124 | 31 |
| 6 | 16 | Takuma Sato | 30 | Mi-Jack/Panasonic | Dallara UAK 18 | Honda | 260 | 2:24:19.2022 135.116 | 28 |
| 7 | 13 | Ryan Hunter-Reay | 28 | DHL | Dallara UAK 18 | Honda | 260 | 2:24:24.9663 135.026 | 26 |
| 8 | 4 | Simon Pagenaud | 22 | Menards | Dallara UAK 18 | Chevy | 260 | 2:24:26.4825 135.003 | 25 |
| 9 | 6 | Marcus Ericsson | 8 | Huski Chocolate | Dallara UAK 18 | Honda | 260 | 2:24:29.7080 134.953 | 22 |
| 10 | 15 | Jack Harvey | 60 | AutoNation/SiriusXM | Dallara UAK 18 | Honda | 260 | 2:24:31.0611 134.932 | 20 |
| 11 | 20 | Conor Daly | 59 | Match Fit Pass | Dallara UAK 18 | Chevy | 260 | 2:24:33.0440 134.901 | 19 |
| 12 | 24 | Dalton Kellett | 4 | K-Line Insulators USA | Dallara UAK 18 | Chevy | 260 | 2:24:35.4985 134.863 | 12 |
| 13 | 17 | Tony Kanaan | 48 | NTT DATA | Dallara UAK 18 | Honda | 260 | 2:24:37.7771 134.827 | 17 |
| 14 | 14 | Romain Grosjean | 51 | Nurtec ODT | Dallara UAK 18 | Honda | 259 | Flagged | 16 |
| 15 | 19 | James Hinchcliffe | 29 | Genesys | Dallara UAK 18 | Honda | 243 | Pulled in | 15 |
| 16 | 10 | Felix Rosenqvist | 7 | Vuse/Arrow Electronics | Dallara UAK 18 | Chevy | 211 | Halfshaft | 14 |
| 17 | 7 | Alexander Rossi | 27 | NAPA Auto Parts/AutoNation | Dallara UAK 18 | Honda | 200 | Wrecked | 13 |
| 18 | 2 | Colton Herta | 26 | Gainbridge | Dallara UAK 18 | Honda | 185 | Halfshaft | 13 |
| 19 | 8 | Scott Dixon | 9 | PNC Bank | Dallara UAK 18 | Honda | 100 | Pulled in | 11 |
| 20 | 21 | Álex Palou | 10 | American Legion | Dallara UAK 18 | Honda | 64 | Wrecked | 10 |
| 21 | 23 | Rinus VeeKay | 21 | SONAX | Dallara UAK 18 | Chevy | 64 | Wrecked | 9 |
| 22 | 22 | Ed Carpenter | 20 | United States Air Force | Dallara UAK 18 | Chevy | 54 | Wrecked | 8 |
| 23 | 9 | Graham Rahal | 15 | Hy-Vee | Dallara UAK 18 | Honda | 4 | Accident damage | 7 |
| 24 | 12 | Ed Jones | 18 | SealMaster | Dallara UAK 18 | Honda | 2 | Wrecked | 6 |
| Lap Leaders | Total | Laps |
| Josef Newgarden | 138 | 68-132, 138, 184-197, 203-260 |
| Colton Herta | 101 | 2-57, 139-183 |
| Sébastien Bourdais | 18 | 58-67, 134-137, 199-202 |
| Will Power | 1 | 1 |
| Simon Pagenaud | 1 | 133 |
| Patricio O'Ward | 1 | 198 |