Darlington #1 2023 Green Flag Speeds
| Rank | Driver | Finish | Green Flag Speed |
|---|---|---|---|
| 1 | Martin Truex Jr | 31 | 157.597 |
| 2 | William Byron | 1 | 157.461 |
| 3 | Ross Chastain | 29 | 157.449 |
| 4 | Kyle Busch | 7 | 157.314 |
| 5 | Kyle Larson | 20 | 157.277 |
| 6 | Christopher Bell | 14 | 157.013 |
| 7 | Brad Keselowski | 4 | 156.992 |
| 8 | Kevin Harvick | 2 | 156.976 |
| 9 | Bubba Wallace | 5 | 156.924 |
| 10 | Tyler Reddick | 22 | 156.722 |
| 11 | Ryan Blaney | 9 | 156.709 |
| 12 | Ricky Stenhouse Jr | 13 | 156.636 |
| 13 | Joey Logano | 18 | 156.528 |
| 14 | Chase Elliott | 3 | 156.450 |
| 15 | Harrison Burton | 6 | 156.329 |
| 16 | Aric Almirola | 21 | 156.168 |
| 17 | Denny Hamlin | 12 | 155.896 |
| 18 | Todd Gilliland | 11 | 155.684 |
| 19 | Ty Gibbs | 16 | 155.626 |
| 20 | Ryan Preece | 15 | 155.504 |
| 21 | Erik Jones | 25 | 155.383 |
| 22 | Austin Dillon | 35 | 155.304 |
| 23 | Chris Buescher | 10 | 155.188 |
| 24 | Austin Cindric | 19 | 155.180 |
| 25 | Noah Gragson | 26 | 155.175 |
| 26 | Daniel Su?rez | 34 | 155.165 |
| 27 | Justin Haley | 8 | 155.056 |
| 28 | Michael McDowell | 33 | 154.931 |
| 29 | Corey Lajoie | 24 | 154.775 |
| 30 | Chase Briscoe | 17 | 154.760 |
| 31 | Josh Berry | 30 | 154.637 |
| 32 | Ryan Newman | 28 | 154.604 |
| 33 | AJ Allmendinger | 23 | 154.208 |
| 34 | Ty Dillon | 27 | 153.847 |
| 35 | Brennan Poole | 36 | 153.425 |
| 36 | BJ McLeod | 32 | 149.499 |
