Road America 2018 Rennkalender
| Datum | Rennserie | Runde | Veranstaltungsname |
|---|---|---|---|
| 17. Mai - 20. Mai | Porsche GT3 Cup Trophy USA Beendet | Round 3 | |
| 3. August - 5. August | IMSA SportsCar Championship Beendet | Round 8 | Continental Tire Road Race Showcase |
| 4. August - 5. August | LSTNA - Lamborghini Super Trofeo Nordamerika Beendet | Round 3 |