Sonoma Raceway 2018 Race Calendar
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| July 7 - July 8 | Porsche Owners Club - Cup Racing Series Finished | Round 6 |
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| July 7 - July 8 | Porsche Owners Club - Cup Racing Series Finished | Round 6 |