| 1 | Discount Tire GP of St.Petersburg | 3/4/23 | Streets of St. Petersburg | 4 | 3 |
| 2 | Andersen Interior Contracting GP of St.Pete | 3/5/23 | Streets of St. Petersburg | 5 | 1 |
| 3 | Cooper Tires GP of Sebring-1 | 3/24/23 | Sebring International Raceway | 2 | 1 |
| 4 | Cooper Tires GP of Sebring-2 | 3/25/23 | Sebring International Raceway | 3 | 1 |
| 5 | Discount Tire GP of Indianapolis-1 | 5/12/23 | Indianapolis Motor Speedway Road Course | 10 | 18 |
| 6 | Discount Tire GP of Indianapolis-2 | 5/13/23 | Indianapolis Motor Speedway Road Course | 1 | 5 |
| 7 | Cooper Tires Freedom 90 | 5/26/23 | Lucas Oil Indianapolis Raceway Park | 5 | 5 |
| 8 | L&W Supply Grand Prix of Road America-1 | 6/17/23 | Road America | 4 | 2 |
| 9 | L&W Supply Grand Prix of Road America-2 | 6/18/23 | Road America | 7 | 4 |
| 10 | Cooper Tires Grand Prix of Mid-Ohio-1 | 7/1/23 | Mid-Ohio Sports Car Course | 7 | 11 |
| 11 | Cooper Tires Grand Prix of Mid-Ohio-2 | 7/1/23 | Mid-Ohio Sports Car Course | 1 | 1 |
| 12 | Cooper Tires Grand Prix of Toronto-1 | 7/15/23 | Streets of Toronto | 1 | 7 |
| 13 | Cooper Tires Grand Prix of Toronto-2 | 7/16/23 | Streets of Toronto | 1 | 1 |
| 14 | Discount Tire Circuit of the Americas GP-1 | 8/26/23 | Circuit of The Americas | 4 | 4 |
| 15 | Discount Tire Circuit of the Americas GP-2 | 8/27/23 | Circuit of The Americas | 4 | 6 |
| 16 | VP Racing Fuels GP of Portland-1 | 9/1/23 | Portland International Raceway | 5 | 2 |
| 17 | VP Racing Fuels GP of Portland-2 | 9/2/23 | Portland International Raceway | 3 | 3 |
| 18 | VP Racing Fuels GP of Portland-3 | 9/3/23 | Portland International Raceway | 3 | 10 |