La NASCAR, en colaboración con FOX Sports y NBC Sports, anunciaron los horarios de transmisión para la temporada NASCAR Cup Series, NASCAR Xfinity Series y NASCAR Camping World Truck Series 2021.
Con 23 carreras en FOX y NBC, respectivamente – un aumento de 2 en comparación con 2020 -, FOX transmitirá las primeras 7 de la Cup Series por FOX, empezando con la DAYTONA 500 (domingo, 14 de febrero, 2:30 PM).
La primera carrera de la Cup Series en una pista de tierra desde 1970, también se transmitirá por FOX desde el Bristol Motor Speedway (domingo, 28 de marzo, 3:30 PM, Este).
Otras 12 carreras se transmitirán por NBC, incluyendo el debut de la NASCAR Cup Series en Road America (domingo, 4 de julio, 2:30 PM, Este). La carrera del campeonato de la NASCAR Cup Series en el Phoenix Raceway (domingo, 7 de noviembre, 3 PM, Este) será el broche de oro a las 5 transmisiones de la NASCAR Cup Series en NBC.
Cinco carreras de la NASCAR Xfinity Series se transmitirán en vivo en 2021, incluyendo la primera vista de la temporada al Talladega Superspeedway (Sábado, 24 de abril, 4 PM, Este, FOX) y 3 carreras consecutivas de los Playoffs – Charlotte Roval (Sábado, 9 de octubre, 3 PM; Este, NBC), Texas Motor Speedway (Sábado, 16 de octubre, 3 PM, Este, NBC) y Kansas Speedway (sábabdo, 23 de octubre, 3 PM, Este, NBC).
El Martinsville Speedway será la sede de dos carreras de la NASCAR Xfinity Series en la primavera (9 de abril, 8 PM, Este por FS1) y de la NASCAR Cup Series (10 de abril, 7:30 PM, Este por FS1) en dos jornadas bajo las luces.
Horarios 2021: NASCAR Cup Series | Xfinity Series | Camping World Truck Series
La NASCAR Camping World Truck Series tendrá 13 carreras en primetime en 2021, incluyendo la primera carrera dude la NASCAR en la pista de tierras del Knoxville Raceway, el viernes, 9 de julio (9 PM, Este, FS1).
Además, la NASCAR Camping World Truck Series y la NASCAR Xfinity Series tendrán dobles jornadas nocturnas en sábados, incluyendo las carreras en el Atlanta Motor Speedway (20 de marzo a las 2:30 y 5 PM, Este, FS1), COTA (22 de mayo, 1 PM y 4 PM, Este, FS1) y la penúltima fecha de los Playoffs en Martinsville (30 de octubre, 1 PM, Este por FS1 y 6 PM, Este por NBCSN, respectivamente).
La doble jornada de sábado de la Camping World Truck Series y la Xfinity Series en Texas (12 de junio 1 y 4 PM, Este) servirá como previa para la última carrera de la Cup Serie en FOX en 2021 (domingo, 13 de junio, 6 PM, Este, FS1).
Finalmente, CNBC transmitirá la carrera de la NASCAR Xfinity Series en el Watkins Glen International (sábado, 7 de agosto, 4 PM, Este) ya que NBC Sports estará cerrando sus transmisiones de los Juegos Olímpicos Tokio 2021.
A continuación los horarios completos de las 3 series nacionales de la NASCA. Todas las horas son del Este y están sujetas a cambios.
NASCAR Cup Series 2021
| Fecha | Pista | Cadena TV | Hora | Radio |
| Martes, Feb. 9 | Clash (Daytona Road Course) | FS1 | 7:00 p.m. | MRN/SiriusXM |
| Jueves, Feb. 11 | Duel at Daytona | FS1 | 7:00 p.m. | MRN/SiriusXM |
| Domingo, Feb. 14 | DAYTONA 500 | FOX | 2:30 p.m. | MRN/SiriusXM |
| Domingo, Feb. 21 | Daytona Road Course | FOX | 3:00 p.m. | MRN/SiriusXM |
| Domingo, Feb. 28 | Homestead-Miami | FOX | 3:30 p.m. | MRN/SiriusXM |
| Domingo, Marzo 7 | Las Vegas | FOX | 3:30 p.m. | PRN/SiriusXM |
| Domingo, Marzo 14 | Phoenix | FOX | 3:30 p.m. | MRN/SiriusXM |
| Domingo, Marzo 21 | Atlanta | FOX | 3:00 p.m. | PRN/SiriusXM |
| Domingo, Marzo 28 | Bristol Dirt | FOX | 3:30 p.m. | PRN/SiriusXM |
| Domingo, Abril 10 | Martinsville | FS1 | 7:30 p.m. | MRN/SiriusXM |
| Domingo, Abril 18 | Richmond | FOX | 3:00 p.m. | MRN/SiriusXM |
| Domingo, Abril 25 | Talladega | FOX | 2:00 p.m. | MRN/SiriusXM |
| Domingo, Mayo 2 | Kansas | FS1 | 3:00 p.m. | MRN/SiriusXM |
| Domingo, May 9 | Darlington | FS1 | 3:30 p.m. | MRN/SiriusXM |
| Domingo, Mayo 16 | Dover | FS1 | 2:00 p.m. | MRN/SiriusXM |
| Domingo, Mayo 23 | COTA | FS1 | 2:30 p.m. | PRN/SiriusXM |
| Domingo, Mayo 30 | Charlotte | FOX | 6:00 p.m. | PRN/SiriusXM |
| Domingo, Junio 6 | Sonoma | FS1 | 4:00 p.m. | PRN/SiriusXM |
| Domingo, Junio 13 | All-Star Open (Texas) | FS1 | 6:00 p.m. | MRN/SiriusXM |
| Domingo, Junio 13 | All-Star (Texas) | FS1 | 8:00 p.m. | MRN/SiriusXM |
| Domingo, Junio 20 | Nashville Superspeedway | NBCSN | 3:30 p.m. | MRN/SiriusXM |
| Domingo, Junio 26 | Pocono | NBCSN | 3:00 p.m. | MRN/SiriusXM |
| Domingo, Junio 27 | Pocono | NBCSN | 3:30 p.m. | MRN/SiriusXM |
| Domingo, Julio 4 | Road America | NBC | 2:30 p.m. | MRN/SiriusXM |
| Domingo, Julio 11 | Atlanta | NBCSN | 3:30 p.m. | PRN/SiriusXM |
| Domingo, Julio 18 | New Hampshire | NBCSN | 3:00 p.m. | PRN/SiriusXM |
| Domingo, Agosto 8 | Watkins Glen | NBCSN | 3:00 p.m. | MRN/SiriusXM |
| Domingo, Agosto 15 | Indianapolis Road Course | NBC | 1:00 p.m. | IMS/SiriusXM |
| Domingo, Agosto 22 | Michigan | NBCSN | 3:00 p.m. | MRN/SiriusXM |
| Domingo, Agosto 28 | Daytona | NBC | 7:00 p.m. | MRN/SiriusXM |
| Domingo, Sept. 5 | Darlington | NBCSN | 6:00 p.m. | MRN/SiriusXM |
| Sábado, Sept. 11 | Richmond | NBCSN | 7:30 p.m. | MRN/SiriusXM |
| Sábado, Sept. 18 | Bristol | NBCSN | 7:30 p.m. | PRN/SiriusXM |
| Domingo, Sept. 26 | Las Vegas | NBCSN | 7:00 p.m. | PRN/SiriusXM |
| Domingo, Oct. 3 | Talladega | NBC | 2:00 p.m. | MRN/SiriusXM |
| Domingo, Oct. 10 | Charlotte Roval | NBC | 2:00 p.m. | PRN/SiriusXM |
| Domingo, Oct., 17 | Texas | NBC | 2:00 p.m. | PRN/SiriusXM |
| Domingo, Oct. 24 | Kansas | NBCSN | 3:00 p.m. | MRN/SiriusXM |
| Domingo, Oct. 31 | Martinsville | NBC | 2:00 p.m. | MRN/SiriusXM |
| Domingo, Nov. 7 | Phoenix | NBC | 3:00 p.m. | MRN/SiriusXM |
NASCAR Xfinity Series 2021
| Fecha | Pista | Cadena TV | Hora | Radio |
| Sábado, Feb. 13 | Daytona | FS1 | 5:00 p.m. | MRN/SiriusXM |
| Sábado, Feb. 20 | Daytona Road Course | FS1 | 5:00 p.m. | MRN/SiriusXM |
| Sábado, Feb. 27 | Homestead-Miami | FS1 | 4:30 p.m. | MRN/SiriusXM |
| Sábado, Marzo 6 | Las Vegas | FS1 | 4:30 p.m. | PRN/SiriusXM |
| Sábado, Marzo 13 | Phoenix | FS1 | 5:30 p.m. | MRN/SiriusXM |
| Sábado, Marzo 20 | Atlanta | FS1 | 5:00 p.m. | PRN/SiriusXM |
| Viernes, Abril 9 | Martinsville | FS1 | 8:00 p.m. | MRN/SiriusXM |
| Sábado, Abril 24 | Talladega | FOX | 4:00 p.m. | MRN/SiriusXM |
| Sábado, Mayo 8 | Darlington | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Sábado, Mayo 15 | Dover | FS1 | 1:30 p.m. | MRN/SiriusXM |
| Sábado, Mayo 22 | COTA | FS1 | 4:00 p.m. | PRN/SiriusXM |
| Sábado, Mayo 29 | Charlotte | FS1 | 1:00 p.m. | PRN/SiriusXM |
| Sábado, Junio 5 | Mid-Ohio | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Sábado, Junio 12 | Texas | FS1 | 4:00 p.m. | PRN/SiriusXM |
| Sábado, Junio 19 | Nashville Superspeedway | NBCSN | 3:30 p.m. | MRN/SiriusXM |
| Domingo, Junio 27 | Pocono | NBCSN | Noon | MRN/SiriusXM |
| Sábado, Julio 3 | Road America | NBC | 2:30 p.m. | MRN/SiriusXM |
| Sábado, Julio 10 | Atlanta | NBCSN | 3:00 p.m. | PRN/SiriusXM |
| Sábado, Julio 17 | New Hampshire | NBCSN | 3:00 p.m. | PRN/SiriusXM |
| Sábado, Agosto 7 | Watkins Glen | CNBC | 4:00 p.m. | MRN/SiriusXM |
| Sábado, Agosto 14 | Indianapolis Road Course | NBCSN | 4:00 p.m. | IMS/SiriusXM |
| Sábado, Agosto 21 | Michigan | NBCSN | 3:00 p.m. | MRN/SiriusXM |
| Viernes, Agosto 27 | Daytona | NBCSN | 7:30 p.m. | MRN/SiriusXM |
| Sábado, Sept. 4 | Darlington | NBCSN | 3:30 p.m. | MRN/SiriusXM |
| Sábado, Sept. 11 | Richmond | NBCSN | 2:30 p.m. | MRN/SiriusXM |
| Viernes, Sept. 17 | Bristol | NBCSN | 7:30 p.m. | PRN/SiriusXM |
| Sábado, Sept. 25 | Las Vegas | NBCSN | 7:30 p.m. | PRN/SiriusXM |
| Sábado, Oct. 2 | Talladega | NBCSN | 4:30 p.m. | MRN/SiriusXM |
| Sábado, Oct. 9 | Charlotte Roval | NBC | 3:00 p.m. | PRN/SiriusXM |
| Sábado, Oct. 16 | Texas | NBC | 3:00 p.m. | PRN/SiriusXM |
| Sábado, Oct. 23 | Kansas | NBC | 3:00 p.m. | MRN/SiriusXM |
| Sábado, Oct. 30 | Martinsville | NBCSN | 6:00 p.m. | MRN/SiriusXM |
| Sábado, Nov. 6 | Phoenix | NBCSN | 8:30 p.m. | MRN/SiriusXM |
NASCAR Camping World Truck Series 2021
| Fecha | Pista | Cadena TV | Hora | Radio |
| Viernes, Feb. 12 | Daytona | FS1 | 7:30 p.m. | MRN/SiriusXM |
| Viernes, Feb. 19 | Daytona Road Course | FS1 | 7:30 p.m. | MRN/SiriusXM |
| Viernes, March 5 | Las Vegas | FS1 | 9:00 p.m. | MRN/SiriusXM |
| Sábado, Marzo 20 | Atlanta | FS1 | 2:30 p.m. | MRN/SiriusXM |
| Sábado, Marzo 27 | Bristol Dirt | FS1 | 8:00 p.m. | MRN/SiriusXM |
| Sábado, Abril 17 | Richmond | FS1 | 1:30 p.m. | MRN/SiriusXM |
| Sábado, Mayo 1 | Kansas | FS1 | 7:30 p.m. | MRN/SiriusXM |
| Viernes, Mayo 7 | Darlington | FS1 | 7:30 p.m. | MRN/SiriusXM |
| Sábado, Mayo 22 | COTA | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Viernes, Mayo 28 | Charlotte | FS1 | 8:30 p.m. | MRN/SiriusXM |
| Sábado, Junio 12 | Texas | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Viernes, Junio 18 | Nashville Superspeedway | FS1 | 8:00 p.m. | MRN/SiriusXM |
| Sábado, Junio 26 | Pocono | FS1 | Noon | MRN/SiriusXM |
| Viernes, Julio 9 | Knoxville (IA) | FS1 | 9:00 p.m. | MRN/SiriusXM |
| Sábado, Agosto 7 | Watkins Glen | FS1 | 12:30 p.m. | MRN/SiriusXM |
| Viernes, Agosto 20 | World Wide Technology Raceway | FS1 | 9:00 p.m. | MRN/SiriusXM |
| Domingo, Sept. 5 | Canadian Tire Motorsports Park | FS1 | 1:30 p.m. | MRN/SiriusXM |
| Jueves, Sept. 16 | Bristol | FS1 | 9:00 p.m. | MRN/SiriusXM |
| Viernes, Sept. 24 | Las Vegas | FS1 | 9:00 p.m. | MRN/SiriusXM |
| Sábado, Oct. 2 | Talladega | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Sábado, Oct. 30 | Martinsville | FS1 | 1:00 p.m. | MRN/SiriusXM |
| Viernes, Nov. 5 | Phoenix | FS1 | 8:00 p.m. | MRN/SiriusXM |