- 2021 Quaker State 400 presented by Walmart Results Stock Car Online Results Reference
- 2021 Quaker State 400 presented by Walmart Results Stock Car Online Results Reference
| fin | qual | driver | team | laps led | car | sponsor | pts | laps | status |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 8 | Kurt Busch | Chip Ganassi Racing | 144 | #1 Chevy Camaro | GEARWRENCH | 59 | 260 | Finish |
| 2 | 2 | Kyle Busch | Joe Gibbs Racing | 91 | #18 Toyota Camry | Skittles Gummies | 54 | 260 | Finish |
| 3 | 5 | Martin Truex Jr | Joe Gibbs Racing | 0 | #19 Toyota Camry | Auto-Owners Insurance | 37 | 260 | Finish |
| 4 | 17 | Alex Bowman | Hendrick Motorsports | 0 | #48 Chevy Camaro | Ally | 48 | 260 | Finish |
| 5 | 15 | Ryan Blaney | Team Penske | 0 | #12 Ford Mustang | Advance Same Day | 36 | 260 | Finish |
| 6 | 7 | Tyler Reddick | Richard Childress Racing | 0 | #8 Chevy Camaro | Okuma | 42 | 260 | Finish |
| 7 | 1 | Chase Elliott | Hendrick Motorsports | 13 | #9 Chevy Camaro | Adrenaline Shoc | 30 | 260 | Finish |
| 8 | 4 | Christopher Bell | Joe Gibbs Racing | 0 | #20 Toyota Camry | CRAFTSMAN Racing for a Miracle | 29 | 260 | Finish |
| 9 | 12 | Matt DiBenedetto | Wood Brothers Racing | 0 | #21 Ford Mustang | Menards \ Quaker State | 28 | 260 | Finish |
| 10 | 14 | Brad Keselowski | Team Penske | 0 | #2 Ford Mustang | MoneyLion | 30 | 260 | Finish |
| 11 | 21 | Kevin Harvick | Stewart-Haas Racing | 0 | #4 Ford Mustang | Mobil 1 Summer Road Trip | 27 | 260 | Finish |
| 12 | 13 | Austin Dillon | Richard Childress Racing | 0 | #3 Chevy Camaro | BREZTRI | 27 | 260 | Finish |
| 13 | 3 | Denny Hamlin | Joe Gibbs Racing | 2 | #11 Toyota Camry | Offerpad Awesome Different | 38 | 260 | Finish |
| 14 | 24 | Bubba Wallace | 23XI Racing | 0 | #23 Toyota Camry | Door Dash | 23 | 260 | Finish |
| 15 | 11 | Chase Briscoe | Stewart-Haas Racing | 0 | #14 Ford Mustang | One Cure | 22 | 260 | Finish |
| 16 | 18 | Chris Buescher | RFK Racing | 0 | #17 Ford Mustang | Fastenal | 21 | 260 | Finish |
| 17 | 23 | Cole Custer | Stewart-Haas Racing | 1 | #41 Ford Mustang | CODE 3 ASSOCIATES | 20 | 260 | Finish |
| 18 | 6 | Kyle Larson | Hendrick Motorsports | 0 | #5 Chevy Camaro | Hendrickcars.com | 31 | 260 | Finish |
| 19 | 10 | Joey Logano | Team Penske | 0 | #22 Ford Mustang | Shell Pennzoil | 22 | 259 | Finish |
| 20 | 19 | William Byron | Hendrick Motorsports | 0 | #24 Chevy Camaro | Axalta | 20 | 259 | Finish |
| 21 | 9 | Ross Chastain | Chip Ganassi Racing | 0 | #42 Chevy Camaro | Clover | 16 | 259 | Finish |
| 22 | 26 | Corey LaJoie | Spire Motorsports | 0 | #7 Chevy Camaro | The Boss Baby: Family Business | 15 | 258 | Finish |
| 23 | 20 | Aric Almirola | Stewart-Haas Racing | 8 | #10 Ford Mustang | Smithfield | 14 | 258 | Finish |
| 24 | 22 | Erik Jones | Legacy Motor Club | 0 | #43 Chevy Camaro | Petty's Garage | 13 | 258 | Finish |
| 25 | 34 | Ryan Preece | JTG Daugherty Racing | 1 | #37 Chevy Camaro | Kroger/Scott Brand | 12 | 258 | Finish |
| 26 | 32 | Anthony Alfredo | Front Row Motorsports | 0 | #38 Ford Mustang | Georgia Peanuts | 11 | 257 | Finish |
| 27 | 25 | Michael McDowell | Front Row Motorsports | 0 | #34 Ford Mustang | FR8 Auctions | 10 | 256 | Finish |
| 28 | 29 | Ryan Newman | RFK Racing | 0 | #6 Ford Mustang | Oscar Mayer | 9 | 256 | Finish |
| 29 | 28 | Justin Haley | Spire Motorsports | 0 | #77 Chevy Camaro | Fraternal Order of Eagles | 0 | 255 | Finish |
| 30 | 36 | BJ McLeod | Live Fast Motorsports | 0 | #78 Ford Mustang | Superior Logistics Services | 0 | 254 | Finish |
| 31 | 37 | Garrett Smithley | Rick Ware Racing | 0 | #53 Chevy Camaro | SEED Token | 0 | 253 | Finish |
| 32 | 33 | Bayley Currey | Rick Ware Racing | 0 | #15 Chevy Camaro | Fort Worth Screen Printing | 0 | 253 | Finish |
| 33 | 31 | Cody Ware | Rick Ware Racing | 0 | #51 Chevy Camaro | Nurtec ODT | 0 | 253 | Finish |
| 34 | 30 | Josh Bilicki | Rick Ware Racing | 0 | #52 Ford Mustang | Junction Fuels | 3 | 248 | Finish |
| 35 | 35 | Quin Houff | StarCom Racing | 0 | #00 Chevy Camaro | 8 Ball Chocolate Whiskey | 2 | 248 | Finish |
| 36 | 27 | Daniel Suárez | Trackhouse Racing | 0 | #99 Chevy Camaro | Good Sam - Autism Awareness | 1 | 243 | Finish |
| 37 | 16 | Ricky Stenhouse Jr | JTG Daugherty Racing | 0 | #47 Chevy Camaro | NOS Energy Drink | 1 | 178 | Suspension |