Результаты двенадцатого этапа Чемпионата Америки по Мотокроссу 2011 года в классе 450
| Поз | № | Гонщик | Нац | Мотоцикл | 1-й заезд | 2-й заезд | Итог | 
| 1 | 1 | Dungey, Ryan |  | Suzuki | 22 | 25 | 47 | 
| 2 | 2 | Villopoto, Ryan |  | Kawasaki | 25 | 20 | 45 | 
| 3 | 17 | Barcia, Justin |  | Honda | 20 | 22 | 42 | 
| 4 | 24 | Metcalfe, Brett |  | Suzuki | 16 | 16 | 32 | 
| 5 | 800 | Alessi, Mike |  | KTM | 18 | 14 | 32 | 
| 6 | 30 | Regal, Kyle |  | Suzuki | 15 | 13 | 28 | 
| 7 | 22 | Reed, Chad |  | Honda | 9 | 18 | 27 | 
| 8 | 10 | Brayton, Justin |  | Yamaha | 12 | 15 | 27 | 
| 9 | 32 | Weimer, Jake |  | Kawasaki | 11 | 9 | 20 | 
| 10 | 44 | Smith, Les |  | Yamaha | 7 | 12 | 19 | 
| 11 | 108 | Albertson, Jimmy |  | Yamaha | 8 | 11 | 19 | 
| 12 | 53 | Browne, Jarred |  | Yamaha | 6 | 8 | 14 | 
| 13 | 42 | Izzi, Nico |  | Yamaha | 14 | 0 | 14 | 
| 14 | 361 | Facciotti, Colton |  | Honda | 13 | 0 | 13 | 
| 15 | 592 | Canada, Jake |  | Yamaha | 10 | 1 | 11 | 
| 16 | 942 | Simmonds, Tye |  | KTM | 0 | 10 | 10 | 
| 17 | 61 | Howell, Austin |  | Yamaha | 0 | 7 | 7 | 
| 18 | 867 | Noren, Frederik |  | Honda | 4 | 3 | 7 | 
| 19 | 3 | Brown, Mike |  | KTM | 0 | 6 | 6 | 
| 20 | 27 | Wey, Nicholas |  | Yamaha | 0 | 5 | 5 | 
| 21 | 526 | LaMay, Ben |  | Yamaha | 5 | 0 | 5 | 
| 22 | 45 | Friese, Vince |  | Yamaha | 0 | 4 | 4 | 
| 23 | 98 | Bonds, Bobby |  | Kawasaki | 3 | 0 | 3 | 
| 24 | 430 | Porter, Dean |  | Suzuki | 0 | 2 | 2 | 
| 25 | 11 | Chisholm, Kyle |  | Yamaha | 2 | 0 | 2 | 
| 26 | 814 | Vallee, Bryce |  | Yamaha | 1 | 0 | 1 | 
| 27 | 67 | Sewell, Travis |  | Yamaha | 0 | 0 | 0 | 
| 28 | 505 | Lipanovich, Sean |  | Yamaha | 0 | 0 | 0 | 
| 29 | 330 | Catanzaro, A.J. |  | Yamaha | 0 | 0 | 0 | 
| 30 | 111 | Sleeter, Michael |  | KTM | 0 | 0 | 0 | 
| 31 | 64 | Anderson, Derek |  | Kawasaki | 0 | 0 | 0 | 
| 32 | 78 | Borkenhagen, Sean |  | Kawasaki | 0 | 0 | 0 | 
| 33 | 510 | Udall, Colton |  | Honda | 0 | 0 | 0 | 
| 34 | 709 | Bright, Tyler |  | KTM | 0 | 0 | 0 | 
| 35 | 539 | Dietrich, Ricky |  | Yamaha | 0 | 0 | 0 | 
| 36 | 43 | Peick, Weston |  | Kawasaki | 0 | 0 | 0 | 
| 37 | 732 | Hames, Tye |  | Honda | 0 | 0 | 0 | 
| 38 | 26 | Byrne, Michael |  | Suzuki | 0 | 0 | 0 | 
| 39 | 212 | Albers, Auston |  | Kawasaki | 0 | 0 | 0 | 
| 40 | 687 | Toth, Garret |  | Yamaha | 0 | 0 | 0 |