2021 NASCAR Xfinity Series Schedule
| Date | Location | Network | Start Time | Radio |
| Saturday, Feb. 13 | Daytona | FS1 | 5:00 p.m. | MRN/SiriusXM |
| Saturday, Feb. 20 | Daytona Road Course | FS1 | 5:00 p.m. | MRN/SiriusXM |
| Saturday, Feb. 27 | Homestead-Miami | FS1 | 4:30 p.m. | MRN/SiriusXM |
| Saturday, March 6 | Las Vegas | FS1 | 4:30 p.m. | PRN/SiriusXM |
| Saturday, March 13 | Phoenix | FS1 | 5:30 p.m. | MRN/SiriusXM |
| Saturday, March 20 | Atlanta | FS1 | 5:00 p.m. | PRN/SiriusXM |
| Friday, April 9 | Martinsville | FS1 | 8:00 p.m. | MRN/SiriusXM |
| Saturday, April 24 | Talladega | FOX | 4:00 p.m. | MRN/SiriusXM |
| Saturday, May 8 | Darlington | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Saturday, May 15 | Dover | FS1 | 1:30 p.m. | MRN/SiriusXM |
| Saturday, May 22 | COTA | FS1 | 4:00 p.m. | PRN/SiriusXM |
| Saturday, May 29 | Charlotte | FS1 | 1:00 p.m. | PRN/SiriusXM |
| Saturday, June 5 | Mid-Ohio | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Saturday, June 12 | Texas | FS1 | 4:00 p.m. | PRN/SiriusXM |
| Saturday, June 19 | Nashville Superspeedway | NBCSN | 3:30 p.m. | MRN/SiriusXM |
| Sunday, June 27 | Pocono | NBCSN | Noon | MRN/SiriusXM |
| Saturday, July 3 | Road America | NBC | 2:30 p.m. | MRN/SiriusXM |
| Saturday, July 10 | Atlanta | NBCSN | 3:00 p.m. | PRN/SiriusXM |
| Saturday, July 17 | New Hampshire | NBCSN | 3:00 p.m. | PRN/SiriusXM |
| Saturday, August 7 | Watkins Glen | CNBC | 4:00 p.m. | MRN/SiriusXM |
| Saturday, August 14 | Indianapolis Road Course | NBCSN | 4:00 p.m. | IMS/SiriusXM |
| Saturday, August 21 | Michigan | NBCSN | 3:00 p.m. | MRN/SiriusXM |
| Friday, August 27 | Daytona | NBCSN | 7:30 p.m. | MRN/SiriusXM |
| Saturday, Sept. 4 | Darlington | NBCSN | 3:30 p.m. | MRN/SiriusXM |
| Saturday, Sept. 11 | Richmond | NBCSN | 2:30 p.m. | MRN/SiriusXM |
| Friday, Sept. 17 | Bristol | NBCSN | 7:30 p.m. | PRN/SiriusXM |
| Saturday, Sept. 25 | Las Vegas | NBCSN | 7:30 p.m. | PRN/SiriusXM |
| Saturday, Oct. 2 | Talladega | NBCSN | 4:30 p.m. | MRN/SiriusXM |
| Saturday, Oct. 9 | Charlotte Roval | NBC | 3:00 p.m. | PRN/SiriusXM |
| Saturday, Oct. 16 | Texas | NBC | 3:00 p.m. | PRN/SiriusXM |
| Saturday, Oct. 23 | Kansas | NBC | 3:00 p.m. | MRN/SiriusXM |
| Saturday, Oct. 30 | Martinsville | NBCSN | 6:00 p.m. | MRN/SiriusXM |
| Saturday, Nov. 6 | Phoenix | NBCSN | 8:30 p.m. | MRN/SiriusXM |
