IndyCar at Long Beach: Rossi goes fastest in final practice
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| Alexander Rossi. Can he win pole two years in a row? |
Andretti Autosport Honda driver Alexander Rossi waited until the very end of the session to show his hand with the fastest lap of the weekend so far at 1m07.0588s.
While the top-13 drivers were separated by just 1/2-second, the biggest gap was between 1st and 2nd with Graham Rahal second quick 0.1278s back.
Scott Dixon was third quick in his Ganassi PNC Honda while Ryan Hunter-Reay and Simon Pagenaud rounded out the top-5.
Practice 3 Results
| Pos | No | Name | FTime | Diff | Gap | Laps | Engine | Team |
| 1 | 27 | Alexander Rossi | 1:07.059 | –.—- | –.—- | 19 | Honda | Andretti Autosport |
| 2 | 15 | Graham Rahal | 1:07.187 | 0.1278 | 0.1278 | 23 | Honda | Rahal Letterman Lanigan Racing |
| 3 | 9 | Scott Dixon | 1:07.226 | 0.1669 | 0.0391 | 24 | Honda | Chip Ganassi Racing Teams |
| 4 | 28 | Ryan Hunter-Reay | 1:07.295 | 0.2361 | 0.0692 | 16 | Honda | Andretti Autosport |
| 5 | 22 | Simon Pagenaud | 1:07.403 | 0.3444 | 0.1083 | 22 | Chevy | Team Penske |
| 6 | 2 | Josef Newgarden | 1:07.448 | 0.3896 | 0.0452 | 19 | Chevy | Team Penske |
| 7 | 88 | Colton Herta | 1:07.478 | 0.4197 | 0.0301 | 22 | Honda | Harding Steinbrenner Racing |
| 8 | 10 | Felix Rosenqvist | 1:07.495 | 0.4366 | 0.0169 | 21 | Honda | Chip Ganassi Racing Teams |
| 9 | 31 | Patricio O'Ward | 1:07.504 | 0.4457 | 0.0091 | 20 | Chevy | Carlin |
| 10 | 12 | Will Power | 1:07.526 | 0.4673 | 0.0216 | 20 | Chevy | Team Penske |
| 11 | 18 | Sebastien Bourdais | 1:07.532 | 0.4730 | 0.0057 | 21 | Honda | Dale Coyne Racing with Vasser-Sullivan |
| 12 | 5 | James Hinchcliffe | 1:07.536 | 0.4775 | 0.0045 | 19 | Honda | Arrow Schmidt Peterson Motorsports |
| 13 | 26 | Zach Veach | 1:07.568 | 0.5096 | 0.0321 | 21 | Honda | Andretti Autosport |
| 14 | 7 | Marcus Ericsson | 1:07.643 | 0.5843 | 0.0747 | 19 | Honda | Arrow Schmidt Peterson Motorsport |
| 15 | 60 | Jack Harvey | 1:07.643 | 0.5845 | 0.0002 | 20 | Honda | Meyer Shank Racing with Arrow SPM |
| 16 | 30 | Takuma Sato | 1:07.747 | 0.6885 | 0.1040 | 22 | Honda | Rahal Letterman Lanigan Racing |
| 17 | 98 | Marco Andretti | 1:07.832 | 0.7730 | 0.0845 | 18 | Honda | Andretti Herta Autosport w/Curb-Agajanian |
| 18 | 20 | Ed Jones | 1:07.894 | 0.8348 | 0.0618 | 17 | Chevy | Ed Carpenter Racing |
| 19 | 21 | Spencer Pigot | 1:07.916 | 0.8570 | 0.0222 | 17 | Chevy | Ed Carpenter Racing |
| 20 | 19 | Santino Ferrucci | 1:07.966 | 0.9075 | 0.0505 | 15 | Honda | Dale Coyne Racing |
| 21 | 59 | Max Chilton | 1:07.980 | 0.9211 | 0.0136 | 19 | Chevy | Carlin |
| 22 | 14 | Tony Kanaan | 1:08.158 | 1.0988 | 0.1777 | 16 | Chevy | AJ Foyt Enterprises |
| 23 | 4 | Matheus Leist | 1:08.169 | 1.1104 | 0.0116 | 21 | Chevy | AJ Foyt Enterprises |