Kalendar Perlumbaan Litar Amerika 2018
| Tarikh | Siri Perlumbaan | Bulatan | Nama Acara |
|---|---|---|---|
| 9 Mac - 11 Mac | Ferrari Challenge North America Selesai | Round 2 | |
| 1 November - 4 November | Piala Porsche GT3 Piala Amerika Syarikat Selesai | Round 7 | |
| 15 November - 18 November | Siri 24 GT Selesai | Round 8 | 3x3H COTA USA 2018 & 24H COTA USA 2018 |