2019 Monster Energy AMA Supercross Championship Seattle: 450SX Heat 1 Results
250SX West March 23, 2019
450SX Heat 1 Results
| Rider | Time | Interval | Best Lap | Hometown | Bike | |
|---|---|---|---|---|---|---|
| 1 |  Ken Roczen | 46.203 | 10 Laps | Mattstedt, Germany  | Honda CRF450R | |
| 2 |  Marvin Musquin | 46.147 | +01.074 | La Reole, France  | KTM 450 SX-F | |
| 3 |  Zach Osborne | 46.482 | +08.045 | Abingdon, VA  | Husqvarna FC 450 | |
| 4 |  Cole Seely | 46.763 | +09.766 | Newbury Park, CA | Honda CRF450R | |
| 5 |  Blake Baggett | 46.811 | +10.572 | Grand Terrace, CA | KTM 450 SX-F | |
| 6 |  Tyler Bowers | 47.118 | +11.908 | Danville, KY | Kawasaki KX450 | |
| 7 |  Justin Bogle | 46.993 | +14.789 | Cushing, OK | KTM 450 SX-F | |
| 8 |  Justin Barcia | 47.049 | +29.211 | Monroe, NY | Yamaha YZ450F | |
| 9 |  Carlen Gardner | 49.053 | +32.137 | Paso Robles, CA | Honda CRF450R | |
| 10 |  Austin Politelli | 49.266 | +34.421 | Menifee, CA | Honda CRF450R | |
| 11 |  Adam Enticknap | 49.757 | +38.802 | Lompoc, CA | Suzuki RM-Z450 | |
| 12 |  Ben LaMay | 49.433 | +41.952 | Anchorage, AK | Honda CRF450R | |
| 13 |  Casey Brennan | 50.459 | +51.089 | Albuquerque, NM | KTM 450 SX-F | |
| 14 |  Scotty Wennerstrom | 51.384 | 9 Laps | Tyler, TX | Kawasaki KX450 | |
| 15 |  Tyler Enticknap | 51.435 | +02.917 | Lompoc, CA | Honda CRF450R | |
| 16 |  Vann Martin | 51.257 | +04.719 | Houston, TX | Honda CRF450R | |
| 17 |  Tevin Tapia | 52.421 | +19.395 | Federal Way, WA | Yamaha YZ450F | |
| 18 |  Broc Shoemaker | 53.302 | +30.597 | Agua Dulce, CA | Kawasaki KX450 | |
| 19 | Colton Aeck | 52.895 | 6 Laps | Granada Hills, CA | Honda CRF450R |
