Résultats du segment 1 de l'événement Instacart 500 2021
14 mars
Arizona - Avondale
Phoenix Raceway 1,61 km (1,00 mi)
| P | # | Pilote | Propriétaire | Moteur | Tours | Points | PP |
| 1 | 12 | Ryan Blaney | Team Penske | Ford | 75 | 10 | 1 |
| 2 | 22 | Joey Logano | Team Penske | Ford | 75 | 9 | |
| 3 | 2 | Brad Keselowski | Team Penske | Ford | 75 | 8 | |
| 4 | 11 | Denny Hamlin | Joe Gibbs Racing | Toyota | 75 | 7 | |
| 5 | 9 | Chase Elliott | Hendrick Motorsports | Chevrolet | 75 | 6 | |
| 6 | 18 | Kyle Busch | Joe Gibbs Racing | Toyota | 75 | 5 | |
| 7 | 4 | Kevin Harvick | Stewart-Haas Racing | Ford | 75 | 4 | |
| 8 | 24 | William Byron | Hendrick Motorsports | Chevrolet | 75 | 3 | |
| 9 | 5 | Kyle Larson | Hendrick Motorsports | Chevrolet | 75 | 2 | |
| 10 | 21 | Matthew DiBenedetto | Wood Brothers Racing | Ford | 75 | 1 |