IndyCar 2018 Grand Prix of Indianapolis
| Cla | # | Piloto | Equipe | Tempo | Diferença | Mph | |
|---|---|---|---|---|---|---|---|
| 1 | 12 |  Will Power | Team Penske | 1'09.818 | 125.761 | ||
| 2 | 6 |  Robert Wickens | Schmidt Peterson Motorsports | 1'09.905 | 0.087 | 125.604 | |
| 3 | 18 |  Sébastien Bourdais | Dale Coyne Racing | 1'09.944 | 0.126 | 125.533 | |
| 4 | 5 | James Hinchcliffe | Schmidt Peterson Motorsports | 1'10.085 | 0.267 | 125.281 | |
| 5 | 20 |  Jordan King | Ed Carpenter Racing | 1'10.132 | 0.314 | 125.197 | |
| 6 | 1 | Josef Newgarden | Team Penske | 1'10.727 | 0.909 | 124.144 | |
| 7 | 22 | Simon Pagenaud | Team Penske | 1'10.038 | 0.220 | 125.366 | |
| 8 | 27 | Alexander Rossi | Andretti Autosport | 1'10.106 | 0.288 | 125.244 | |
| 9 | 21 | Spencer Pigot | Ed Carpenter Racing | 1'10.160 | 0.341 | 125.148 | |
| 10 | 3 |  Helio Castroneves | Team Penske | 1'10.184 | 0.366 | 125.104 | |
| 11 | 30 |  Takuma Sato | Rahal Letterman Lanigan Racing | 1'10.197 | 0.379 | 125.081 | |
| 12 | 14 | Tony Kanaan | A.J. Foyt Enterprises | 1'10.359 | 0.541 | 124.794 | |
| 13 | 28 | Ryan Hunter-Reay | Andretti Autosport | 1'10.098 | 0.280 | 125.258 | |
| 14 | 98 | Marco Andretti | Andretti Autosport | 1'10.104 | 0.286 | 125.247 | |
| 15 | 10 |  Ed Jones | Chip Ganassi Racing | 1'10.285 | 0.467 | 124.924 | |
| 16 | 59 | Max Chilton | Carlin | 1'10.211 | 0.393 | 125.057 | |
| 17 | 15 | Graham Rahal | Rahal Letterman Lanigan Racing | 1'10.360 | 0.542 | 124.792 | |
| 18 | 9 |  Scott Dixon | Chip Ganassi Racing | 1'10.322 | 0.503 | 124.860 | |
| 19 | 19 | Zachary Claman DeMelo | Dale Coyne Racing | 1'10.506 | 0.688 | 124.533 | |
| 20 | 26 | Zach Veach | Andretti Autosport | 1'10.337 | 0.518 | 124.833 | |
| 21 | 4 | Matheus Leist | A.J. Foyt Enterprises | 1'10.642 | 0.824 | 124.293 | |
| 22 | 88 |  Gabby Chaves | Harding Racing | 1'10.506 | 0.688 | 124.533 | |
| 23 | 23 | Charlie Kimball | Carlin | 1'10.778 | 0.960 | 124.055 | |
| 24 | 32 | Kyle Kaiser | Juncos Racing | 1'10.739 | 0.921 | 124.123 |