Kalender IMSA WeatherTech SportsCar Championship 2023
| Datum | Meeting | Locatie |
|---|---|---|
| 20-01-2023 22-01-2023 | Roar before the Rolex 24 IWSC | Daytona International Speedway |
| 26-01-2023 29-01-2023 | Rolex 24 at Daytona IWSC | Daytona International Speedway |
| 15-03-2023 18-03-2023 | Mobil 1 12 Hours of Sebring FIA WEC, IWSC | Sebring International Raceway |
| 14-04-2023 15-04-2023 | Long Beach IWSC | Long Beach Road Course |
| 12-05-2023 14-05-2023 | Laguna Seca IWSC | Mazda Raceway Laguna Seca |
| 22-06-2023 25-06-2023 | 6H Watkins Glen IWSC | Watkins Glen International |
| 07-07-2023 09-07-2023 | Canadian Tire Motorsport Park IWSC | Canadian Tire Motorsport Park |
| 21-07-2023 22-07-2023 | Lime Rock Park IWSC | Lime Rock Park |
| 03-08-2023 06-08-2023 | Road America IWSC | Road America |
| 25-08-2023 27-08-2023 | Michelin GT Challenge IWSC | Virginia International Raceway |
| 15-09-2023 17-09-2023 | Indianapolis IWSC | Indianapolis Motor Speedway |
| 11-10-2023 14-10-2023 | Petit Le Mans IWSC | Road Atlanta |
Frank Beliën