| 1 | Cooper Tires GP of St. Petersburg | 3/4/23 | St. Petersburg Grand Prix | 1 | 1 |
| 2 | Discount Tire GP of St. Petersburg | 3/5/23 | St. Petersburg Grand Prix | 4 | 3 |
| 3 | Cooper Tires GP of Sebring-1 | 3/25/23 | Sebring International Raceway | 3 | 1 |
| 4 | Cooper Tires GP of Sebring-2 | 3/26/23 | Sebring International Raceway | 3 | 4 |
| 5 | Discount Tire GP of Indianapolis-1 | 5/12/23 | Indianapolis GP Circuit | 11 | 2 |
| 6 | Discount Tire GP of Indianapolis-2 | 5/13/23 | Indianapolis GP Circuit | 3 | 2 |
| 7 | Discount Tire GP of Indianapolis-3 | 5/13/23 | Indianapolis GP Circuit | 4 | 1 |
| 8 | Cooper Tires Freedom 75 | 5/26/23 | Indianapolis Raceway Park | 5 | 6 |
| 9 | Discount Tire Grand Prix of Road America-1 | 6/17/23 | Road America | 1 | 12 |
| 10 | Discount Tire Grand Prix of Road America-2 | 6/17/23 | Road America | 3 | 1 |
| 11 | Discount Tire Grand Prix of Mid-Ohio-1 | 6/30/23 | Mid-Ohio Sports Car Course | 5 | 4 |
| 12 | Discount Tire Grand Prix of Mid-Ohio-2 | 7/1/23 | Mid-Ohio Sports Car Course | 4 | 19R |
| 13 | Discount Tire Grand Prix of Mid-Ohio-3 | 7/1/23 | Mid-Ohio Sports Car Course | 4 | 22R |
| 14 | Cooper Tires Grand Prix of Toronto-1 | 7/15/23 | Toronto Street Circuit | 5 | 15R |
| 15 | Cooper Tires Grand Prix of Toronto-2 | 7/16/23 | Toronto Street Circuit | 9 | 3 |
| 16 | Discount Tire GP of Portland-1 | 9/1/23 | Portland International Raceway | 9 | 5 |
| 17 | Discount Tire GP of Portland-2 | 9/2/23 | Portland International Raceway | 11 | 13 |
| 18 | Discount Tire GP of Portland-3 | 9/3/23 | Portland International Raceway | 11 | 10 |