Kalendaryo ng Karera Sebring International Raceway 2018
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 1 March - 4 March | Porsche GT3 Cup Trophy USA Natapos | Round 1 |
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 1 March - 4 March | Porsche GT3 Cup Trophy USA Natapos | Round 1 |