Calendar 2025 Season 4 - IMSA Racing:
| Round | Tracks | Format | Dates |
|---|---|---|---|
| 1 | Le Man | 24 Hour | 14th Sept |
| 2 | Road America | Full Course | 21st Sept |
| 3 | Sebring | International | 28th Sept |
| 4 | VIR | International | 4th Oct |
| 5 | Mosport | Full | 12th Oct |
| 6 | Daytona | Road | 19th Oct |
| 7 | Charlotte Road | Roval 2025 | 26th Oct |
| 8 | Monza | GP without first chicane | 2nd Nov |
| 9 | Mugello | GP | 9th Nov |
| 10 | Long Beach | Street | 16th Nov |
| 11 | Watkins Glenn | Classic | 23rd Nov |
| 12 | Road Atlanta | Full | 30th Nov |