Kalender Balap Watkins Glen Internasional 2015
| Tanggal | Racing Series diterjemahkan menjadi Seri Balap | Putaran | Nama Acara |
|---|---|---|---|
| 26 Juni - 28 Juni | LSTNA - Lamborghini Super Trofeo Amerika Utara Selesai | Round 2 | Sahlen's Six Hours of the Glen |
| 27 Juni - 28 Juni | IMSA SportsCar Championship Selesai | Round 5 | Sahlen's Six Hours of the Glen |