Kansas #1 2023 Green Flag Speeds
| Rank | Driver | Finish Pos. | Green Flag Speed |
|---|---|---|---|
| 1 | Denny Hamlin | 1 | 168.264 |
| 2 | Martin Truex Jr | 8 | 167.997 |
| 3 | Kyle Larson | 2 | 167.464 |
| 4 | Ty Gibbs | 34 | 167.433 |
| 5 | Bubba Wallace | 4 | 167.424 |
| 6 | Christopher Bell | 36 | 167.283 |
| 7 | Tyler Reddick | 9 | 167.071 |
| 8 | Chase Elliott | 7 | 166.952 |
| 9 | Ross Chastain | 5 | 166.911 |
| 10 | Kevin Harvick | 11 | 166.597 |
| 11 | William Byron | 3 | 166.577 |
| 12 | Kyle Busch | 35 | 166.548 |
| 13 | Daniel Su?rez | 15 | 166.509 |
| 14 | Aric Almirola | 13 | 166.335 |
| 15 | Ryan Blaney | 16 | 166.316 |
| 16 | Joey Logano | 6 | 166.174 |
| 17 | Austin Dillon | 10 | 166.089 |
| 18 | Chris Buescher | 17 | 165.901 |
| 19 | Josh Berry | 25 | 165.753 |
| 20 | AJ Allmendinger | 14 | 165.687 |
| 21 | Ricky Stenhouse Jr | 12 | 165.536 |
| 22 | Erik Jones | 21 | 165.523 |
| 23 | Justin Haley | 18 | 164.931 |
| 24 | Todd Gilliland | 24 | 164.777 |
| 25 | Corey Lajoie | 20 | 164.576 |
| 26 | Ty Dillon | 22 | 164.479 |
| 27 | Noah Gragson | 29 | 164.436 |
| 28 | Michael McDowell | 26 | 164.336 |
| 29 | Harrison Burton | 30 | 164.199 |
| 30 | Brad Keselowski | 19 | 164.179 |
| 31 | Ryan Preece | 27 | 163.621 |
| 32 | JJ Yeley | 23 | 163.407 |
| 33 | Austin Cindric | 31 | 163.151 |
| 34 | Chase Briscoe | 32 | 161.939 |
| 35 | Brennan Poole | 28 | 161.849 |
| 36 | Josh Bilicki | 33 | 159.968 |
