| 1 | 2021 | Barber Motorsports Park | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 6 | 13 |
| 2 | 2021 | Barber Motorsports Park | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 1 | 2 |
| 3 | 2021 | Streets of St. Petersburg | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 4 | 2 |
| 4 | 2021 | Streets of St. Petersburg | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 2 | 1 |
| 5 | 2021 | Indianapolis Grand Prix Circuit | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 1 |
| 6 | 2021 | Indianapolis Grand Prix Circuit | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 9 |
| 7 | 2021 | Indianapolis Grand Prix Circuit | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 1 |
| 8 | 2021 | Lucas Oil Raceway | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 1 |
| 9 | 2021 | Road America | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 6 | 10 |
| 10 | 2021 | Road America | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 1 |
| 11 | 2021 | Mid-Ohio Sports Car Course | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 1 | 1 |
| 12 | 2021 | Mid-Ohio Sports Car Course | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 5 |
| 13 | 2021 | World Wide Technology Raceway | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 7 | 2 |
| 14 | 2021 | New Jersey Motorsports Park | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 3 | 3 |
| 15 | 2021 | New Jersey Motorsports Park | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 9 | 9 |
| 16 | 2021 | New Jersey Motorsports Park | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 8 | 9 |
| 17 | 2021 | Mid-Ohio Sports Car Course | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 2 | 1 |
| 18 | 2021 | Mid-Ohio Sports Car Course | 1 | Jay Howard Driver Development | Tatuus PM-18 | Mazda MZR-PM18A | 11 | 3 |
