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2023 Grant Park 220 practice 1 results Select a practice session: 1Summary Previous race results / Next race results                     Next at this track     Post NASCAR Cup Series race number 18 of 36 Sunday, July 2, 2023 at Chicago Street Course, Chicago, IL 78 laps on a 2.140 mile street course (166.920 miles) Time of race: 2:50:48 Average speed: 60.281 mph Pole speed: 89.557 mph Cautions: 9 for 21 laps Margin of victory: 1.259 sec Attendance: n/a Lead changes: 7 Green flag passes: 1,201 (21.1 per green flag lap) (Source: NASCAR loop data) Glossary    2023 NASCAR Cup Series results   /   2023 standings

Practice 1 results for this race: Rank Driver Nbr Car Time Diff Speed # Laps Best Lap 1 Shane Van Gisbergen 91 Chevrolet 1:29.419     88.572   21 20 2 Denny Hamlin 11 Toyota 1:29.732   0.313   88.263   24 23 3 Jenson Button 15 Ford 1:29.734   0.315   88.261   21 16 4 Martin Truex Jr 19 Toyota 1:29.845   0.426   88.152   19 19 5 Christopher Bell 20 Toyota 1:30.067   0.648   87.934   20 18 6 Kyle Larson 5 Chevrolet 1:30.181   0.762   87.823   18 15 7 Corey LaJoie 7 Chevrolet 1:30.457   1.038   87.555   21 19 8 Tyler Reddick 45 Toyota 1:30.548   1.129   87.467   24 14 9 Ty Gibbs 54 Toyota 1:30.563   1.144   87.453   15 14 10 Brad Keselowski 6 Ford 1:30.682   1.263   87.338   18 16 11 Daniel Suarez 99 Chevrolet 1:30.726   1.307   87.296   19 18 12 Noah Gragson 42 Chevrolet 1:30.746   1.327   87.277   11 11 13 A.J. Allmendinger 16 Chevrolet 1:30.838   1.419   87.188   18 15 14 William Byron 24 Chevrolet 1:30.864   1.445   87.163   18 15 15 Michael McDowell 34 Ford 1:30.866   1.447   87.161   19 16 16 Ryan Blaney 12 Ford 1:30.884   1.465   87.144   20 18 17 Austin Dillon 3 Chevrolet 1:30.944   1.525   87.087   22 21 18 Chris Buescher 17 Ford 1:30.984   1.565   87.048   23 22 19 Kyle Busch 8 Chevrolet 1:31.074   1.655   86.962   21 21 20 Chase Elliott 9 Chevrolet 1:31.102   1.683   86.936   19 17 21 Todd Gilliland 38 Ford 1:31.148   1.729   86.892   14 11 22 Chase Briscoe 14 Ford 1:31.169   1.750   86.872   20 16 23 Joey Logano 22 Ford 1:31.174   1.755   86.867   24 21 24 Ryan Preece 41 Ford 1:31.224   1.805   86.819   20 20 25 Bubba Wallace 23 Toyota 1:31.258   1.839   86.787   22 20 26 Justin Haley 31 Chevrolet 1:31.416   1.997   86.637   19 14 27 Alex Bowman 48 Chevrolet 1:31.416   1.997   86.637   23 20 28 Erik Jones 43 Chevrolet 1:31.617   2.198   86.447   15 14 29 Aric Almirola 10 Ford 1:31.740   2.321   86.331   21 19 30 Ross Chastain 1 Chevrolet 1:31.784   2.365   86.290   19 13 31 Austin Cindric 2 Ford 1:31.910   2.491   86.171   11 5 32 Andy Lally 51 Ford 1:31.915   2.496   86.167   22 21 33 Kevin Harvick 4 Ford 1:32.011   2.592   86.077   23 23 34 Ty Dillon 77 Chevrolet 1:32.047   2.628   86.043   24 17 35 Ricky Stenhouse Jr 47 Chevrolet 1:32.163   2.744   85.935   10 6 36 Josh Bilicki 78 Chevrolet 1:32.235   2.816   85.868   19 18 37 Harrison Burton 21 Ford 1:32.254   2.835   85.850   20 9