Below is the remaining schedule for the 2021 NASCAR Cup Series regular season and playoffs, beginning with Sunday’s race on the Daytona Road Course.
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NASCAR Cup Series 2021 regular season
| Date | Race | Track | Time | TV | Radio |
| Feb. 21 | O’Reilly Auto Parts 253 at Daytona | Daytona Road Course | 3 p.m. | Fox | MRN |
| Feb. 28 | Dixie Vodka 400 | Homestead-Miami Speedway | 3:30 p.m. | Fox | MRN |
| March 7 | Pennzoil 400 presented by Jiffy Lube | Las Vegas Motor Speedway | 3:30 p.m. | Fox | PRN |
| March 14 | NASCAR Cup Series Race at Phoenix | Phoenix Raceway | 3:30 p.m. | Fox | MRN |
| March 21 | Folds of Honor Quiktrip 500 | Atlanta Motor Speedway | 3 p.m. | Fox | PRN |
| March 28 | Food City Dirt Race | Bristol Motor Speedway | 3:30 p.m. | Fox | PRN |
| April 10 | Blue-Emu Maximum Pain Relief 500 | Martinsville Speedway | 7:30 p.m. | FS1 | MRN |
| April 18 | Toyota Owners 400 | Richmond Raceway | 3 p.m. | Fox | MRN |
| April 25 | GEICO 500 | Talladega Superspeedway | 2 p.m. | Fox | MRN |
| May 2 | NASCAR Cup Series Race at Kansas | Kansas Speedway | 3 p.m. | FS1 | MRN |
| May 9 | NASCAR Cup Series Race at Darlington | Darlington Raceway | 3:30 p.m. | FS1 | MRN |
| May 16 | Drydene 400 | Dover International Speedway | 2 p.m. | FS1 | MRN |
| May 23 | NASCAR Cup Series Race at COTA | Circuit of the Americas | 2:30 p.m. | FS1 | PRN |
| May 30 | Coca-Cola 600 | Charlotte Motor Speedway | 6 p.m. | Fox | PRN |
| June 6 | Toyota/Save Mart 350 | Sonoma Raceway | 4 p.m. | FS1 | PRN |
| June 13 | NASCAR All-Star Open | Texas Motor Speedway | 6 p.m. | FS1 | MRN |
| June 13 | NASCAR All-Star Race | Texas Motor Speedway | 8 p.m. | FS1 | MRN |
| June 20 | Ally 400 | Nashville Superspeedway | 3:30 p.m. ET | NBCSN | MRN |
| June 26 | NASCAR Cup Series Race at Pocono-1 | Pocono Raceway | 3 p.m. | NBCSN | MRN |
| June 27 | NASCAR Cup Series Race at Pocono-2 | Pocono Raceway | 3:30 p.m. | NBCSN | MRN |
| July 4 | NASCAR Cup Series Race at Road America | Road America | 2:30 p.m. | NBC | MRN |
| July 11 | Quaker State 400 Presented by Walmart | Atlanta Motor Speedway | 3:30 p.m. | NBCSN | PRN |
| July 18 | Foxwoods Resort Casino 301 | New Hampshire Motor Speedway | 3 p.m. | NBCSN | PRN |
| Aug. 8 | Go Bowling at The Glen | Watkins Glen International | 3 p.m. | NBCSN | MRN |
| Aug. 15 | Big Machine Vodka 400 at the Brickyard powered by Florida Georgia Line | Indianapolis Motor Speedway Road Course | 1 p.m. | NBC | IMS |
| Aug. 22 | FireKeepers Casino 400 | Michigan International Speedway | 3 p.m. | NBCSN | MRN |
| Aug. 28 | Coke Zero Sugar 400 | Daytona International Speedway | 7 p.m. | NBC | MRN |
NASCAR Cup Series 2021 playoffs Round of 16
| Date | Race | Track | Time | TV | Radio |
| Sept. 5 | Cook Out Southern 500 | Darlington Raceway | 6 p.m. | NBCSN | MRN |
| Sept. 11 | Federated Auto Parts 400 | Richmond Raceway | 7:30 p.m. | NBCSN | MRN |
| Sept. 18 | Bass Pro Shops Night Race | Bristol Motor Speedway | 7:30 p.m. | NBCSN | PRN |
NASCAR Cup Series 2021 playoffs Round of 12
| Date | Race | Track | Time | TV | Radio |
| Sept. 26 | South Point 400 | Las Vegas Motor Speedway | 7 p.m. | NBCSN | PRN |
| Oct. 3 | YellaWood 500 | Talladega Superspeedway | 2 p.m. | NBC | MRN |
| Oct. 10 | Bank of America ROVAL 400 | Charlotte Motor Speedway Road Course | 2 p.m. | NBC | PRN |
NASCAR Cup Series 2021 playoffs Round of 8
| Date | Race | Track | Time | TV | Radio |
| Oct. 17 | Autotrader EchoPark Automotive 500 | Texas Motor Speedway | 2 p.m. | NBC | PRN |
| Oct. 24 | Hollywood Casino 400 | Kansas Speedway | 3 p.m. | NBCSN | MRN |
| Oct. 31 | Xfinity 500 | Martinsville Speedway | 2 p.m. | NBC | MRN |
NASCAR Cup Series 2021 playoffs Championship 4
| Date | Race | Track | Time | TV | Radio |
| Nov. 7 | NASCAR Cup Series Championship | Phoenix Raceway | 3 p.m. | NBC | MRN |
