Sebring International Raceway 2018 Løbs Kalender
| Dato | Racerserie | Runde | Begivenhedsnavn |
|---|---|---|---|
| 1 marts - 4 marts | Porsche GT3 Cup Trophy USA Afsluttet | Round 1 | |
| 14 marts - 17 marts | IMSA SportsCar Championship Afsluttet | Round 2 | Mobil 1 Twelve Hours of Sebring |
| 9 november - 11 november | IMSA SportsCar Championship Afsluttet | Non-championship round |