- 2021 Hollywood Casino 400 Results Stock Car Online Results Reference
- 2021 Hollywood Casino 400 Results Stock Car Online Results Reference
| fin | qual | driver | team | laps led | car | sponsor | pts | laps | status |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Kyle Larson | Hendrick Motorsports | 130 | #5 Chevy Camaro | HendrickCars.com | 58 | 267 | Finish |
| 2 | 5 | Chase Elliott | Hendrick Motorsports | 42 | #9 Chevy Camaro | NAPA Auto Parts | 52 | 267 | Finish |
| 3 | 11 | Kevin Harvick | Stewart-Haas Racing | 0 | #4 Ford Mustang | Subway Delivery | 45 | 267 | Finish |
| 4 | 13 | Kurt Busch | Chip Ganassi Racing | 4 | #1 Chevy Camaro | AdventHealth | 47 | 267 | Finish |
| 5 | 6 | Denny Hamlin | Joe Gibbs Racing | 0 | #11 Toyota Camry | FedEx Freight | 41 | 267 | Finish |
| 6 | 9 | William Byron | Hendrick Motorsports | 57 | #24 Chevy Camaro | RaptorTough.com | 50 | 267 | Finish |
| 7 | 7 | Martin Truex Jr | Joe Gibbs Racing | 0 | #19 Toyota Camry | Bass Pro Shops | 30 | 267 | Finish |
| 8 | 10 | Christopher Bell | Joe Gibbs Racing | 0 | #20 Toyota Camry | Craftsman | 29 | 267 | Finish |
| 9 | 8 | Joey Logano | Team Penske | 22 | #22 Ford Mustang | Shell Pennzoil | 28 | 267 | Finish |
| 10 | 14 | Austin Dillon | Richard Childress Racing | 0 | #3 Chevy Camaro | Get Bioethanol | 27 | 267 | Finish |
| 11 | 25 | Alex Bowman | Hendrick Motorsports | 0 | #48 Chevy Camaro | Ally | 34 | 267 | Finish |
| 12 | 21 | Chris Buescher | RFK Racing | 0 | #17 Ford Mustang | Fastenal | 25 | 267 | Finish |
| 13 | 24 | Ross Chastain | Chip Ganassi Racing | 0 | #42 Chevy Camaro | Clover | 28 | 267 | Finish |
| 14 | 27 | Bubba Wallace | 23XI Racing | 0 | #23 Toyota Camry | Door Dash | 25 | 267 | Finish |
| 15 | 16 | Daniel Suárez | Trackhouse Racing | 0 | #99 Chevy Camaro | Good Sam | 22 | 267 | Finish |
| 16 | 18 | Michael McDowell | Front Row Motorsports | 0 | #34 Ford Mustang | Love's Travel Stops | 21 | 266 | Finish |
| 17 | 3 | Brad Keselowski | Team Penske | 2 | #2 Ford Mustang | Discount Tire | 20 | 266 | Finish |
| 18 | 22 | Cole Custer | Stewart-Haas Racing | 0 | #41 Ford Mustang | Feeding America/Wow Wow | 19 | 266 | Finish |
| 19 | 19 | Chase Briscoe | Stewart-Haas Racing | 0 | #14 Ford Mustang | DEKALB | 18 | 266 | Finish |
| 20 | 40 | Parker Kligerman | Gaunt Brothers Racing | 0 | #96 Toyota Camry | Fast Checkout | 0 | 266 | Finish |
| 21 | 32 | Ryan Preece | JTG Daugherty Racing | 0 | #37 Chevy Camaro | Louisiana Hot Sauce | 16 | 265 | Finish |
| 22 | 12 | Tyler Reddick | Richard Childress Racing | 6 | #8 Chevy Camaro | Cat Dealer Tech | 21 | 265 | Finish |
| 23 | 15 | Matt DiBenedetto | Wood Brothers Racing | 4 | #21 Ford Mustang | Menards \ Monster | 14 | 265 | Finish |
| 24 | 28 | Ricky Stenhouse Jr | JTG Daugherty Racing | 0 | #47 Chevy Camaro | BUSH'S Beans | 13 | 265 | Finish |
| 25 | 23 | Corey LaJoie | Spire Motorsports | 0 | #7 Chevy Camaro | Circle B Diecast | 12 | 263 | Finish |
| 26 | 20 | Aric Almirola | Stewart-Haas Racing | 0 | #10 Ford Mustang | Farmland \ Hy-Vee | 11 | 263 | Finish |
| 27 | 31 | Ryan Newman | RFK Racing | 0 | #6 Ford Mustang | Violet Defense | 10 | 263 | Finish |
| 28 | 4 | Kyle Busch | Joe Gibbs Racing | 0 | #18 Toyota Camry | M&M's Halloween | 11 | 261 | Finish |
| 29 | 17 | Erik Jones | Legacy Motor Club | 0 | #43 Chevy Camaro | Petty's Garage | 8 | 260 | Finish |
| 30 | 26 | BJ McLeod | Live Fast Motorsports | 0 | #78 Ford Mustang | NASCAR Ignition | 0 | 259 | Finish |
| 31 | 36 | Cody Ware | Rick Ware Racing | 0 | #51 Chevy Camaro | Nurtec ODT | 0 | 258 | Finish |
| 32 | 39 | Joey Gase | Rick Ware Racing | 0 | #53 Chevy Camaro | Donor Network | 0 | 256 | Finish |
| 33 | 30 | Josh Bilicki | Rick Ware Racing | 0 | #52 Ford Mustang | Tailgreeter | 0 | 256 | Finish |
| 34 | 38 | David Starr | Motorsports Business Management | 0 | #13 Ford Mustang | Brown & Brown Dealer Services | 0 | 255 | Finish |
| 35 | 35 | Quin Houff | StarCom Racing | 0 | #00 Chevy Camaro | CREEK/Chariton | 2 | 255 | Finish |
| 36 | 34 | Ryan Ellis | Rick Ware Racing | 0 | #15 Chevy Camaro | Arrowhead Brass | 0 | 254 | Finish |
| 37 | 2 | Ryan Blaney | Team Penske | 0 | #12 Ford Mustang | Menards\Cardell Cabinetry | 1 | 224 | Accident |
| 38 | 29 | Anthony Alfredo | Front Row Motorsports | 0 | #38 Ford Mustang | Speedy Cash | 1 | 171 | Accident |
| 39 | 33 | Justin Haley | Spire Motorsports | 0 | #77 Chevy Camaro | Circle B Diecast | 0 | 165 | Engine |
| 40 | 37 | Chad Finchum | Power Source | 0 | #66 Toyota Camry | SMITHBILT HOMES | 0 | 47 | Handling |