Sebring International Raceway 2018 Race Calendar
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| March 1 - March 4 | Porsche GT3 Cup Trophy USA Finished | Round 1 | |
| March 14 - March 17 | IMSA SportsCar Championship Finished | Round 2 | Mobil 1 Twelve Hours of Sebring |
| November 9 - November 11 | IMSA SportsCar Championship Finished | Non-championship round |