2021 Monster Energy AMA Supercross Championship
Arlington 3 (West) - 450SX Heat 2 Results
AT&T Stadium
Arlington, TX US 
March 20, 2021
450SX Heat 2 Results
| Rider | Time | Interval | Best Lap | Hometown | Bike | |
|---|---|---|---|---|---|---|
| 1 |  Ken Roczen | 9 Laps | 0:49.084 | Mattstedt  | Honda CRF450R | |
| 2 |  Chase Sexton | +03.004 | 0:49.419 | La Moille, IL  | Honda CRF450R | |
| 3 |  Jason Anderson | +10.702 | 0:49.707 | Edgewood, NM | Husqvarna FC 450 | |
| 4 |  Marvin Musquin | +12.231 | 0:50.366 | La Reole  | KTM 450 SX-F | |
| 5 |  Cooper Webb | +17.253 | 0:49.658 | Newport, NC | KTM 450 SX-F | |
| 6 |  Dylan Ferrandis | +18.978 | 0:50.201 | Avignon | Yamaha YZ450F | |
| 7 |  Max Anstie | +21.799 | 0:51.100 | Newbury, England  | Suzuki RM-Z450 | |
| 8 |  Martin Davalos | +24.771 | 0:51.270 | Quito  | KTM 450 SX-F | |
| 9 |  Kyle Chisholm | +32.578 | 0:52.465 | Clearwater, FL | Yamaha YZ450F | |
| 10 |  Tyler Bowers | +35.304 | 0:52.743 | Danville, KY | Kawasaki KX450 | |
| 11 |  Alex Ray | +40.191 | 0:53.127 | Jackson, TN | Kawasaki KX450 | |
| 12 |  Justin Starling | +53.716 | 0:53.962 | Deland, FL | KTM 450 SX-F | |
| 13 |  Josh Cartwright | +55.820 | 0:54.170 | Tallahassee, FL | Kawasaki KX450 | |
| 14 |  Nick Schmidt | 8 Laps | 0:53.732 | Maryville, WA | Husqvarna FC 450 | |
| 15 |  Scott Champion | +07.883 | 0:55.944 | Temecula, CA | Yamaha YZ450F | |
| 16 |  Henry Miller | +09.228 | 0:55.468 | Rochester, MN | KTM 450 SX-F | |
| 17 |  AJ Catanzaro | +13.984 | 0:55.725 | Portland, CT | Kawasaki KX450 | |
| 18 |  Joshua Greco | +39.784 | 0:56.848 | Valparaiso, IN | Husqvarna FC 450 | |
| 19 |  Jeremy Smith | 7 Laps | 0:55.845 | Marmora, NJ | Kawasaki KX450 | |
| 20 |  Kevin Moranz | 3 Laps | 1:05.542 | Topeka, KS | KTM 450 SX-F |
