2021 Monster Energy AMA Supercross Championship
Arlington 1 (West) - 250SX West Main Event Results
AT&T Stadium
Arlington, TX US 
March 13, 2021
250SX West Main Event Results
| Rider | Time | Interval | Best Lap | Hometown | Bike | |
|---|---|---|---|---|---|---|
| 1 |  Seth Hammaker | 21 Laps | 0:45.214 | Bainbridge, PA  | Kawasaki KX250 | |
| 2 |  Hunter Lawrence | +01.760 | 0:45.200 | Landsborough  | Honda CRF250R | |
| 3 |  Cameron McAdoo | +07.201 | 0:45.399 | Sioux City, IA | Kawasaki KX250 | |
| 4 |  Justin Cooper | +17.097 | 0:45.685 | Cold Spring Harbor, NY | Yamaha YZ250F | |
| 5 |  Garrett Marchbanks | +24.308 | 0:46.290 | Coalville, UT | Yamaha YZ250F | |
| 6 |  Jalek Swoll | +27.756 | 0:46.329 | Belleview, FL | Husqvarna FC 250 | |
| 7 |  Stilez Robertson | +30.334 | 0:46.553 | Bakersfield, CA | Husqvarna FC 250 | |
| 8 |  Mitchell Harrison | +32.446 | 0:46.302 | Lansing, MI | Honda CRF250R | |
| 9 |  Chris Blose | +34.362 | 0:46.772 | Phoenix, AZ | GasGas MC 250F | |
| 10 |  Nate Thrasher | +35.855 | 0:46.648 | Livingston, TN | Yamaha YZ250F | |
| 11 |  Coty Schock | +43.630 | 0:47.050 | Dover, DE | Honda CRF250R | |
| 12 |  Kyle Peters | +45.661 | 0:46.772 | Greensboro, NC | Honda CRF250R | |
| 13 |  Ramyller Alves | +47.959 | 0:47.124 | Coconut Creek, FL | Husqvarna FC 250 | |
| 14 |  Alex Martin | +1:00.654 | 0:45.997 | Millville, MN | Yamaha YZ250F | |
| 15 |  Jordan Bailey | 20 Laps | 0:46.961 | Orlando, FL | Yamaha YZ250F | |
| 16 |  Robbie Wageman | +03.971 | 0:47.616 | Newhall, CA | Yamaha YZ250F | |
| 17 |  Cedric Soubeyras | +06.970 | 0:47.792 | Entraigues Sue  | GasGas MC 250F | |
| 18 |  Ty Masterpool | +12.661 | 0:47.758 | Paradise, TX | GasGas MC 250F | |
| 19 |  Jace Owen | +24.376 | 0:47.864 | Mattoon, IL | Yamaha YZ250F | |
| 20 |  Ryan Surratt | +32.938 | 0:47.858 | Corona, CA | Kawasaki KX250 | |
| 21 |  Jarrett Frye | +35.579 | 0:47.088 | Mechanicsville, MD | Yamaha YZ250F | |
| 22 |  Jordon Smith | 18 Laps | 0:45.730 | Belmont, NC | Kawasaki KX250 |
