Résultats du segment 1 de l'événement Season Finale 500 2021
07 novembre
Arizona - Avondale
Phoenix Raceway 1,61 km (1,00 mi)
| P | # | Pilote | Propriétaire | Moteur | Tours | Points |
| 1 | 19 | Martin Truex Jr. | Joe Gibbs Racing | Toyota | 75 | |
| 2 | 4 | Kevin Harvick | Stewart-Haas Racing | Ford | 75 | 9 |
| 3 | 9 | Chase Elliott | Hendrick Motorsports | Chevrolet | 75 | |
| 4 | 11 | Denny Hamlin | Joe Gibbs Racing | Toyota | 75 | |
| 5 | 5 | Kyle Larson | Hendrick Motorsports | Chevrolet | 75 | |
| 6 | 24 | William Byron | Hendrick Motorsports | Chevrolet | 75 | 5 |
| 7 | 41 | Cole Matthew Custer | Stewart-Haas Racing | Ford | 75 | 4 |
| 8 | 12 | Ryan Blaney | Team Penske | Ford | 75 | 3 |
| 9 | 1 | Kurt Busch | Chip Ganassi Racing | Chevrolet | 75 | 2 |
| 10 | 21 | Matthew DiBenedetto | Wood Brothers Racing | Ford | 75 | 1 |