Chicago Street Green Flag Speeds
| Rank | Driver | Finish Pos. | Green Flag Speed |
|---|---|---|---|
| 1 | Shane Van Gisbergen | 1 | 82.454 |
| 2 | Corey LaJoie | 14 | 81.894 |
| 3 | Tyler Reddick | 28 | 81.814 |
| 4 | Christopher Bell | 18 | 81.611 |
| 5 | Kyle Larson | 4 | 81.429 |
| 6 | Michael McDowell | 7 | 81.397 |
| 7 | Ty Gibbs | 9 | 81.359 |
| 8 | Chase Briscoe | 20 | 81.249 |
| 9 | Justin Haley | 2 | 81.230 |
| 10 | Chris Buescher | 10 | 81.200 |
| 11 | AJ Allmendinger | 17 | 81.191 |
| 12 | Denny Hamlin | 11 | 81.048 |
| 13 | Martin Truex Jr | 32 | 81.027 |
| 14 | Jenson Button | 21 | 80.992 |
| 15 | Erik Jones | 16 | 80.975 |
| 16 | Ryan Preece | 15 | 80.970 |
| 17 | Daniel Su?rez | 27 | 80.932 |
| 18 | Kyle Busch | 5 | 80.818 |
| 19 | Chase Elliott | 3 | 80.813 |
| 20 | William Byron | 13 | 80.759 |
| 21 | Joey Logano | 8 | 80.742 |
| 22 | Ross Chastain | 22 | 80.735 |
| 23 | Austin Cindric | 6 | 80.650 |
| 24 | Josh Bilicki | 23 | 80.607 |
| 25 | Todd Gilliland | 19 | 80.522 |
| 26 | Andy Lally | 26 | 80.507 |
| 27 | Brad Keselowski | 24 | 80.301 |
| 28 | Bubba Wallace | 31 | 80.181 |
| 29 | Ricky Stenhouse Jr | 34 | 80.147 |
| 30 | Ty Dillon | 35 | 80.096 |
| 31 | Ryan Blaney | 33 | 80.079 |
| 32 | Alex Bowman | 37 | 79.816 |
| 33 | Aric Almirola | 12 | 79.786 |
| 34 | Noah Gragson | 25 | 79.399 |
| 35 | Austin Dillon | 36 | 79.178 |
| 36 | Kevin Harvick | 29 | 78.566 |
| 37 | Harrison Burton | 30 | 78.506 |
