Texas 2021 NASCAR Green Flag Speeds
| Rank | Driver | Finish | Green Flag Speed |
|---|---|---|---|
| 1 | Kyle Larson | 1 | 182.969 |
| 2 | Joey Logano | 30 | 182.722 |
| 3 | William Byron | 2 | 182.688 |
| 4 | Tyler Reddick | 9 | 181.838 |
| 5 | Ryan Blaney | 6 | 181.624 |
| 6 | Denny Hamlin | 11 | 181.621 |
| 7 | Kyle Busch | 8 | 181.603 |
| 8 | Kevin Harvick | 5 | 181.449 |
| 9 | Chase Elliott | 7 | 181.217 |
| 10 | Martin Truex Jr | 25 | 181.211 |
| 11 | Christopher Bell | 3 | 181.105 |
| 12 | Brad Keselowski | 4 | 181.09 |
| 13 | Kurt Busch | 16 | 181.073 |
| 14 | Bubba Wallace | 32 | 180.941 |
| 15 | Erik Jones | 12 | 180.879 |
| 16 | Alex Bowman | 33 | 180.771 |
| 17 | Matt DiBenedetto | 13 | 180.704 |
| 18 | Austin Dillon | 14 | 180.698 |
| 19 | Chris Buescher | 21 | 180.654 |
| 20 | Ricky Stenhouse Jr | 34 | 180.618 |
| 21 | Chase Briscoe | 15 | 180.59 |
| 22 | Ryan Newman | 35 | 180.572 |
| 23 | Daniel Suarez | 10 | 180.485 |
| 24 | Michael McDowell | 17 | 180.414 |
| 25 | Justin Haley | 37 | 180.188 |
| 26 | Ryan Preece | 36 | 179.598 |
| 27 | Anthony Alfredo | 29 | 179.33 |
| 28 | Cody Ware | 38 | 179.211 |
| 29 | Corey Lajoie | 20 | 179.208 |
| 30 | Aric Almirola | 18 | 179.064 |
| 31 | Cole Custer | 19 | 178.965 |
| 32 | BJ McLeod | 22 | 174.192 |
| 33 | Garrett Smithley | 24 | 173.842 |
| 34 | David Starr | 23 | 173.834 |
| 35 | Quin Houff | 31 | 172.565 |
| 36 | Josh Bilicki | 26 | 172.146 |
| 37 | Joey Gase | 39 | 172.064 |
| 38 | Ross Chastain | 28 | 169.375 |
| 39 | Timmy Hill | 27 | 169.2 |
