Weekend TV Ratings
NBC earned a 1.95 rating and 3.214 million viewers for Sunday’s NASCAR Cup Series championship race at Phoenix won by America’s best driver of this era, Kyle Larson, up 4.3% from a 1.87 rating and 3.063 million last year.
The Mexican GP F1 race on ABC drew 968,000 viewers, up 13.9% from 850,000 in 2020 and 769,000 in 2019.
Both F1 and NASCAR were up against NFL football games.
| Network | Event | Location | Total Viewers | 18-49 Viewers | 2021 TV Rating | 2020 TV Rating | % Chg |
| NBC | NASCAR Cup Race L | Phoenix | 3,214,000 | 615,000 | 1.95 | 1.87 | +4.3% |
| NBCSN | NASCAR Xfinity race L | Phoenix | 1,013,000 | 254,000 | 0.60 | 0.59 | +1.7% |
| ABC | F1 Race L | Mexico City | 968,000 | 309,000 | 0.59 | 0.52 | +13.9% |
| NBC | MotoGP race L | Portugal | 589,000 | 135,000 | 0.36 | – | – |
| FS1 | NASCAR Truck race L | Phoenix | 473,000 | 106,000 | 0.30 | 0.27 | +11.1% |