Phoenix #1 2021 Green Flag Average Speeds
| Rank | Driver | Finish | Green Flag Speed |
|---|---|---|---|
| 1 | Denny Hamlin | 3 | 129.657 |
| 2 | Joey Logano | 2 | 129.645 |
| 3 | Brad Keselowski | 4 | 129.504 |
| 4 | Martin Truex Jr | 1 | 129.474 |
| 5 | Kyle Larson | 7 | 129.469 |
| 6 | Ryan Blaney | 10 | 129.26 |
| 7 | Kevin Harvick | 6 | 129.242 |
| 8 | Christopher Bell | 9 | 129.061 |
| 9 | William Byron | 8 | 128.967 |
| 10 | Chase Elliott | 5 | 128.859 |
| 11 | Aric Almirola | 11 | 128.665 |
| 12 | Matt DiBenedetto | 14 | 128.657 |
| 13 | Ricky Stenhouse Jr | 12 | 128.612 |
| 14 | Kurt Busch | 15 | 128.57 |
| 15 | Bubba Wallace | 16 | 128.523 |
| 16 | Alex Bowman | 13 | 128.505 |
| 17 | Kyle Busch | 25 | 128.421 |
| 18 | Austin Dillon | 17 | 128.39 |
| 19 | Chase Briscoe | 22 | 128.277 |
| 20 | Erik Jones | 20 | 128.238 |
| 21 | Cole Custer | 31 | 128.162 |
| 22 | Ross Chastain | 19 | 128.087 |
| 23 | Daniel Suarez | 21 | 127.986 |
| 24 | Tyler Reddick | 29 | 127.95 |
| 25 | Ryan Preece | 26 | 127.746 |
| 26 | Chris Buescher | 18 | 127.613 |
| 27 | Michael McDowell | 23 | 127.421 |
| 28 | Justin Haley | 24 | 126.981 |
| 29 | Corey Lajoie | 27 | 126.818 |
| 30 | Ryan Newman | 28 | 126.716 |
| 31 | BJ McLeod | 30 | 125.918 |
| 32 | Cody Ware | 36 | 125.898 |
| 33 | Anthony Alfredo | 37 | 125.885 |
| 34 | Timmy Hill | 38 | 124.462 |
| 35 | Quin Houff | 32 | 123.715 |
| 36 | James Davison | 33 | 122.769 |
| 37 | Garrett Smithley | 34 | 121.696 |
| 38 | Josh Bilicki | 35 | 121.12 |
