Darlington #1 2021 Total Speed Rankings
| Total Speed Ranking | Driver | 1 (Lap 1-73) | 2 (73-146) | 3 (146-219) | 4 (219-293) | Avg. Speed Rank | Finish |
|---|---|---|---|---|---|---|---|
| 1 | Joey Logano | 1 | 2 | 1 | 2 | 1.5 | 1 |
| 2 | Ross Chastain | 2 | 1 | 4 | 2.3 | 30 | |
| 3 | William Byron | 7 | 6 | 3 | 3 | 4.75 | 13 |
| 4 | Martin Truex Jr | 5 | 3 | 7 | 8 | 5.75 | 24 |
| 5 | Kyle Larson | 6 | 7 | 6.5 | 36 | ||
| 5 | Tyler Reddick | 8 | 5 | 12 | 1 | 6.5 | 2 |
| 7 | Christopher Bell | 4 | 8 | 8 | 9 | 7.25 | 6 |
| 8 | Kyle Busch | 3 | 9 | 11 | 7.6 | 33 | |
| 9 | Erik Jones | 10 | 10 | 6 | 17 | 10.75 | 25 |
| 10 | Chase Elliott | 20 | 14 | 5 | 6 | 11.25 | 5 |
| 11 | Daniel Suarez | 14 | 12 | 9 | 12 | 11.75 | 10 |
| 11 | Denny Hamlin | 13 | 4 | 2 | 28 | 11.75 | 21 |
| 13 | Ryan Blaney | 11 | 13 | 10 | 14 | 12 | 17 |
| 14 | Bubba Wallace | 9 | 11 | 18 | 19 | 14.25 | 27 |
| 15 | Kevin Harvick | 17 | 16 | 15 | 10 | 14.5 | 4 |
| 16 | Kurt Busch | 19 | 15 | 13 | 15 | 15.5 | 28 |
| 17 | Ricky Stenhouse Jr | 27 | 21 | 16 | 4 | 17 | 8 |
| 18 | Aric Almirola | 16 | 18 | 14 | 21 | 17.25 | 11 |
| 19 | Michael McDowell | 21 | 20 | 21 | 11 | 18.25 | 7 |
| 20 | Austin Cindric | 12 | 17 | 23 | 26 | 19.5 | 18 |
| 21 | Alex Bowman | 15 | 22 | 26 | 16 | 19.75 | 29 |
| 22 | Justin Haley | 25 | 25 | 24 | 7 | 20.25 | 3 |
| 23 | Austin Dillon | 18 | 30 | 25 | 13 | 21.5 | 9 |
| 24 | Chase Briscoe | 22 | 23 | 19 | 24 | 22 | 20 |
| 24 | Cole Custer | 26 | 28 | 29 | 5 | 22 | 26 |
| 24 | Ty Dillon | 24 | 19 | 27 | 18 | 22 | 12 |
| 27 | Brad Keselowski | 30 | 24 | 17 | 23.6 | 34 | |
| 28 | Harrison Burton | 31 | 27 | 22 | 23 | 25.75 | 14 |
| 29 | Chris Buescher | 23 | 32 | 30 | 20 | 26.25 | 16 |
| 30 | Corey Lajoie | 29 | 33 | 20 | 27.3 | 35 | |
| 31 | Todd Gilliland | 32 | 29 | 28 | 22 | 27.75 | 15 |
| 32 | Daniel Hemric | 28 | 26 | 34 | 29.3 | 31 | |
| 33 | Landon Cassill | 34 | 31 | 32 | 25 | 30.5 | 22 |
| 34 | Cody Ware | 35 | 34 | 31 | 27 | 31.75 | 19 |
| 35 | JJ Yeley | 33 | 35 | 33 | 29 | 32.5 | 23 |
| 36 | BJ McLeod | 36 | 36 | 35 | 35.6 | 32 |