Kalendar Perlumbaan WeatherTech Raceway Laguna Seca 2021
| Tarikh | Siri Perlumbaan | Bulatan | Nama Acara |
|---|---|---|---|
| 10 September - 12 September | LSTNA - Lamborghini Super Trofeo Amerika Utara Selesai | Round 5 | |
| 10 September - 12 September | IMSA SportsCar Championship Selesai | Round 10 | IMSA Monterey Grand Prix |