Kansas #1 2021 Fastest Drivers On Restarts
| Rank | Driver | Finish | Average Speed |
|---|---|---|---|
| 1 | Kyle Larson | 19 | 166.641 |
| 2 | Ryan Blaney | 21 | 166.61 |
| 3 | Kevin Harvick | 2 | 166.496 |
| 4 | Kyle Busch | 1 | 166.429 |
| 5 | Chase Elliott | 5 | 166.4 |
| 6 | Martin Truex Jr | 6 | 166.224 |
| 7 | Denny Hamlin | 12 | 166.12 |
| 8 | Brad Keselowski | 3 | 166.073 |
| 9 | Tyler Reddick | 7 | 165.729 |
| 10 | William Byron | 9 | 165.618 |
| 11 | Christopher Bell | 28 | 165.091 |
| 12 | Kurt Busch | 15 | 165.086 |
| 13 | Austin Dillon | 10 | 165.068 |
| 14 | Matt DiBenedetto | 4 | 164.898 |
| 15 | Ross Chastain | 14 | 164.632 |
| 16 | Alex Bowman | 18 | 164.445 |
| 17 | Joey Logano | 17 | 164.432 |
| 18 | Daniel Suarez | 11 | 164.384 |
| 19 | Corey Lajoie | 27 | 164.314 |
| 20 | Chris Buescher | 8 | 164.188 |
| 21 | Austin Cindric | 22 | 164.129 |
| 22 | Bubba Wallace | 26 | 163.883 |
| 23 | Chase Briscoe | 20 | 163.823 |
| 24 | Ricky Stenhouse Jr | 34 | 163.761 |
| 25 | Ryan Newman | 16 | 163.423 |
| 26 | Erik Jones | 25 | 163.295 |
| 27 | Michael McDowell | 13 | 163.229 |
| 28 | Ryan Preece | 32 | 163.192 |
| 29 | Cole Custer | 24 | 163.145 |
| 30 | Anthony Alfredo | 23 | 162.349 |
| 31 | Aric Almirola | 29 | 162.345 |
| 32 | Justin Haley | 30 | 161.941 |
| 33 | Garrett Smithley | 33 | 159.182 |
| 34 | BJ McLeod | 31 | 159.02 |
| 35 | Joey Gase | 35 | 157.079 |
| 36 | Cody Ware | 36 | 156.757 |
| 37 | Matt Mills | 38 | 155.785 |
| 38 | Quin Houff | 37 | 155.679 |
| 39 | Josh Bilicki | 39 | 152.036 |
