By Soup StaffMotoAmerica Sonoma Twins Cup FP1 Results 2018
| Pos. | Rider | Team | Bike | Best/Gap |
|---|---|---|---|---|
| 1 | Jeffrey Tigert | Spears Racing | Suzuki SV650 | 1:51.266 |
| 2 | Chris Parrish | Ghetto Customs | Suzuki SV650 | 1.653 |
| 3 | Justin Filice | Team Legacy Racing | Suzuki SV650 | 1.857 |
| 4 | Jason Catching | APMotoArts/GERT | Yamaha FZ-07/MT-07 | 2.823 |
| 5 | Darren James | Ruthless Racing Inc. | Yamaha FZ-07/MT-07 | 3.823 |
| 6 | Clifton Ramsdell | First XV Racing | Suzuki SV650 | 7.056 |
| 7 | Jason Madama | Altus Motorsports | Yamaha FZ-07/MT-07 | 7.404 |
| 8 | Melissa Paris | MP13 Racing | Yamaha | 10.024 |
| 9 | Aaron Tulchinsky | TWF Racing | Yamaha FZ-07/MT-07 | 11.260 |
