Graham Rahal topped the speed chart in the fourth practice session for the 102nd running of the Indy 500 at Indianapolis Motor Speedway.
Graham Rahal topped the speed chart in the fourth practice session for the 102nd running of the Indianapolis 500 at the four-turn, 2.5-mile Indianapolis Motor Speedway oval in Speedway, Indiana. This practice session featured all 35 of the IndyCar drivers who are entered in the race.
Rahal, who drives the #15 Rahal Letterman Lanigan Racing Honda, topped the speed chart in the session with a top lap speed of 226.047 miles per hour (39.8148 seconds) around the track. While this was not the fastest lap of the week so far, it was the only lap recorded at above 226 miles per hour today and it was just the fifth lap recorded at above 226 miles per hour so far this week.
All five of the drivers who have recorded laps at over 226 miles per hour so far this week have been Honda drivers, with four of those drivers doing so in yesterday’s practice session that was led by Marco Andretti in his #98 Andretti Herta Autosport Honda, who recorded the fastest lap of the week so far at 227.053 miles per hour (39.5383 seconds).
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The fastest Chevrolet driver in today’s practice session was Tony Kanaan in his #14 A.J. Foyt Enterprises Chevrolet. He finished the session right behind Rahal in second place. Andretti was third fastest in the session ahead of three consecutive Chevrolet drivers.
Ed Carpenter Racing’s Ed Carpenter, Dreyer & Reinbold Racing’s Sage Karam and Team Penske’s Josef Newgarden finished the session in fourth, fifth and sixth place in their #20 Chevrolet, #24 Chevrolet and #1 Chevrolet, respectively. Chevrolet drivers ended up taking eight of the top 11 spots on the speed chart in this session.
Team Penske’s Simon Pagenaud and Helio Castroneves, who topped the first and second practice sessions in their #22 Chevrolet and #3 Chevrolet, finished the session in 11th and eighth place, respectively.
The only other Honda driver who finished the session in his top 11 was Zachary Claman DeMelo, who finished in seventh place in his #19 Dale Coyne Racing Honda. Spencer Pigot and Gabby Chaves were the other drivers who finished the session in the top 10 in ninth and 10th in their #21 Ed Carpenter Racing Chevrolet and #88 Harding Racing Chevrolet, respectively.
Here are the full practice results of the fourth practice session for the 2018 Indianapolis 500 at Indianapolis Motor Speedway.
| Rank | Driver | Car, Team, Engine |
| 1 | Graham Rahal | #15, Rahal Letterman Lanigan Racing, Honda |
| 2 | Tony Kanaan | #14, A.J. Foyt Enterprises, Chevrolet |
| 3 | Marco Andretti | #98, Andretti Herta Autosport, Honda |
| 4 | Ed Carpenter | #20, Ed Carpenter Racing, Chevrolet |
| 5 | Sage Karam | #24, Dreyer & Reinbold Racing, Chevrolet |
| 6 | Josef Newgarden | #1, Team Penske, Chevrolet |
| 7 | Zachary Claman DeMelo | #19, Dale Coyne Racing, Honda |
| 8 | Helio Castroneves | #3, Team Penske, Chevrolet |
| 9 | Spencer Pigot | #21, Ed Carpenter Racing, Chevrolet |
| 10 | Gabby Chaves | #88, Harding Racing, Chevrolet |
| 11 | Simon Pagenaud | #22, Team Penske, Chevrolet |
| 12 | Scott Dixon | #9, Chip Ganassi Racing, Honda |
| 13 | Will Power | #12, Team Penske, Chevrolet |
| 14 | Matheus Leist | #4, A.J. Foyt Enterprises, Chevrolet |
| 15 | Sebastien Bourdais | #18, Dale Coyne Racing, Honda |
| 16 | Oriol Servia | #64, Rahal Letterman Lanigan Racing, Honda |
| 17 | Jay Howard | #7, Schmidt Peterson Motorsports, Honda |
| 18 | Jack Harvey | #60, Meyer Shank Racing, Honda |
| 19 | Ed Jones | #10, Chip Ganassi Racing, Honda |
| 20 | J.R. Hildebrand | #66, Dreyer & Reinbold Racing, Chevrolet |
| 21 | Charlie Kimball | #23, Carlin Motorsport, Chevrolet |
| 22 | Alexander Rossi | #27, Andretti Autosport, Honda |
| 23 | Carlos Munoz | #29, Andretti Autosport, Honda |
| 24 | Robert Wickens | #6, Schmidt Peterson Motorsports, Honda |
| 25 | Kyle Kaiser | #32, Juncos Racing, Chevrolet |
| 26 | Ryan Hunter-Reay | #28, Andretti Autosport, Honda |
| 27 | Max Chilton | #59, Carlin Motorsport, Chevrolet |
| 28 | Stefan Wilson | #25, Andretti Autosport, Honda |
| 29 | James Davison | #33, A.J. Foyt Enterprises, Chevrolet |
| 30 | Danica Patrick | #13, Ed Carpenter Racing, Chevrolet |
| 31 | James Hinchcliffe | #5, Schmidt Peterson Motorsports, Honda |
| 32 | Pippa Mann | #63, Dale Coyne Racing, Honda |
| 33 | Takuma Sato | #30, Rahal Letterman Lanigan Racing, Honda |
| 34 | Conor Daly | #17, Dale Coyne Racing, Honda |
| 35 | Zach Veach | #26, Andretti Autosport, Honda |
Next: Top 10 Indianapolis 500 drivers of all-time
Tune in to IndyCar RaceControl and the IndyCar Radio Network tomorrow from 11:00 a.m. ET to 6:00 p.m. ET for the Fast Friday practice session during which speeds will likely increase by at least three or four miles per hour from today’s session as a result of an increase in horsepower.