WEC løbskalender 2021
| Dato (foreløbig kalender) | Løb | Bane | Varighed | Længde |
| 13. - 14. marts 2021 | Pre-Season Test Sebring | Sebring, USA | ||
| 19. marts 2021 | 1000 miles of Sebring | Sebring, USA | 1000 miles | |
| 1. maj 2021 | 6 Hours of Spa-Francorchamps | Spa-Francorchamps, Belgien | 6 timer | |
| 12.-13. juni 2021 | 24 Hours of Le Mans | Le Mans, Frankrig | 4 timer | |
| 18. juli 2021 | 6 Hours of Monza | Monza, Italien | 6 timer | |
| 26. september 2021 | 6 Hours of Fuji | Oyama, Shizuoka, Japan | 6 timer | |
| 20. november 2021 | 6 Hours of Bahrain | Sakhir, Bahrain |