| Pos. | No. | Rider Name | Hometown | Machine | Sponsors |
| 1 | 60 | DAVID PINGREE | MENIFEE, CA | SUZ | American Suzuki / Primal Impulse / Bills Pipes / Shift / Alpinestars / Champion Nutrition / CTI | |
| 2 | 43 | TRAVIS A PRESTON | HESPERIA, CA | SUZ | Moto XXX / Thor / Pro Circut / Dunlop / Arnette / PJ1 / Works Connection / Streightedje / The Racers Edge / Renthal / Epitaph / Fatwreck Chords | |
| 3 | 128 | STEVE ANDRICH | PERRIS, CA | SUZ | Tuning by Travis / Extreme / One Industries / Wiseco / Competition Direct / Emig Racing / Dunlop / CTi | |
| 4 | 168 | KEITH R JOHNSON | ALBUQUERQUE, NM | YAM | Pro Circuit / Bobby J's Yamaha / No Fear / Spy / Donnie Hanson MX Academy / Renthal / Applied Racing / Ceet / Works Connection / Innovation Sports / ZLT DesignsPJ1 / Bridgestone | |
| 5 | 135 | DANNY R CARLSON | SUN CITY, CA | YAM | DHP / Bills Pipes / Fox / Shoei / Nova / Fasst | |
| 6 | 690 | KENNY L BARTRAM | STILLWATER, OK | KTM | KTM / K-Style / Arai / Alpinestar / Applied / Pro Taper / Goat / FMF | |
| 7 | 136 | DANIEL M BLAIR | LODI, CA | YAM | Mach 1 Motorsports / FMF Racing / Bell Helmets / MX4 / Answer Racing / Spectro Oil / Bell Helmets / Ferodo Brakes / Scott Goggles / EVS Sports Protection | |
| 8 | 73 | CHRIS WHEELER | EL CAJON, CA | YAM | Siefert Motorsports / Spinali Auto Sales / Works Connection / FMF / Dunlop / Arnette / Allsport Braces / On The Pipe / A Pot Rentals | |
| 9 | 861 | DONOVAN MITCHELL | ORANGEVALE, CA | YAM | NCY Yamaha / AXO / Arai / FMF / Scott / IMS / Ceet / Cyromax / SunLine / Works Connection / CTi / SunStar / Renthal / Applied / Motul / All Pro Training / Donnie Hansen MX Academy | |
| 10 | 112 | TOM CLOWERS JR | SANTEE, CA | SUZ | F&S Suzuki / Red Bull / Sinisalo / Smith Goggles / Bell Helmets / Maxima Oils / Alpinestars / Freestyle / CTI / Works Connection / N-Style / Dunlop Tires | |
| 11 | 874 | HAROLD H HAGEMAN | HOLLISTER, CA | SUZ | Fox / FMF / Scott | |
| 12 | 606 | MATT P MAXIMOFF | LAKESIDE, CA | HON | Moto DeMarini / Alcoa / Pro Grip / Planet Honda / Dunlop / Bill's Pipe / ShockwareMVR / RG3 / Sunstar / Wiseco / Santa Cruz Concepts / Applied / V-Delta Force / Ceet / Arai / Works Connection / Alpine Stars | |
| 13 | 501 | STAN SLOBODA | CANADA, ON | SUZ | International Motorcycles / Shift / Torco / BK Designs / F48 Clothing / N-Style RP3 / Goat Eyewear | |
| 14 | 99 | RYAN A DUFF | CHAVIES, KY | YAM | One Industries / Sinisalo / Pro Circuit / Enzo / Oakley / Bell / Straight Edje / CTI | |
| 15 | 233 | LEVI A REID | LLANO, CA | YAM | FMF / ONeal / Fasst Company / Montclair Yamaha / Works Connection | |
| 16 | 587 | JERRY ALEMAN | MORENO VALLEY, CA | SUZ | Suzuki | |
| 17 | 686 | KRIS C ROURKE | SANTEE, CA | SUZ | SMP Clothing / Western Power Sports / Bel-Ray / Scott / IMS / FMF / Cirque Optics / 989 Studios / M&M Plastering / Motosports / Stan's Performance Motorcycles / Dutch Touch Tattooing & Piercing | |
| 18 | 419 | CORY J FRANCIS | TOPEKA, KS | KTM | KTM / K-Style / Arai / Alpinestars / Pro Taper / Applied / Goat Goggles / Michelin / Twin-Air | |
| 19 | 285 | ROBB FLOTH | BOISE, ID | SUZ | Racin Station / Yamaha Sports Center / J&R Power Factory / Toolmart / Aggregate Construction / Zach Evans Construction / Scott | |
| 20 | 182 | DENNIS S OWENS | NORMAN, OK | SUZ | Reynard Racing / Fox / Scott / Silkolene | |
| 21 | 255 | TYSON M TAYLOR | TEMECULA, CA | SUZ | F&S Suzuki / Sinisalo / Works Connection / Arnette / Pro Action | |
| 22 | 26 | SCOTT SHEAK | CORONA, CA | KAW | Splitfire / Procircuit / Kawasaki | |
| Pos. | No. | Rider Name | Hometown | Machine | Sponsors |
| 1 | 16 | CASEY A JOHNSON | LAKE ELSINORE, CA | YAM | Yamaha of Troy / Sinisalo / Oakley / Etnies / No Fear | |
| 2 | 198 | ISAIAH V JOHNSON | ALBUQUERQUE, NM | YAM | Boulder Yamaha / FMF / Answer / Arnette / Applied / Sunstar / EVS / WorkConnectionZLT / Bridgestone / NGK / Motul | |
| 3 | 188 | ANDY R HARRINGTON | EL CAJON, CA | YAM | Team Motoworld of El Cajon, Franklin & Assoc / One Industries / Thor / Smith / Renthal / FMF / Alpinestars / Acerbis / Galfer Brakes / Pirelli Tires / JSP / NJS / Spinelli Auto Sales | |
| 4 | 109 | ALESSIO CHIODI | WILLOW GROVE, PA | HUS | Husqvarna / Bell / UFO / Alpinestars / Dunlop / Marzocchi / Sachs / Donna Karan New York Apparel / Cagiva USA | |
| 5 | 669 | GIO A TEDESCO | ALBUQUERQUE, NM | KTM | Fox / Scott / Tsubaki / One Industries / NCY Yamaha | |
| 6 | 62 | RUSTY HOLLAND | FRESNO, CA | SUZ | Clawson Motorsports | |
| 7 | 66 | TYLER D EVANS | SALINAS, CA | SUZ | O'Neal / American Suzuki / Sunstar / Alpine Stars / Bell Helmets / Bel-Ray / FMF / Smith Regina / Santa Cruz Concepts / Applied / Ceet / CTI / Works Connection Regina / Perilli / Hinson / Yamaha Suzuki Sports Center | |
| 8 | 351 | JASON G PARTRIDGE | LAS VEGAS, NV | SUZ | Suzuki / Fox / FMF / Spy / Reef / Toyota West | |
| 9 | 79 | BRAD HAGSETH | ONALASKA, WA | HON | Demarini Sports / Honda / Pro Grip / Alpinestars / Arai / MVR / RG3 Suspension / Dunlop / Hinson / VFO / Torco / Applied / Works Connection / Tsubaki | |
| 10 | 60 | DAVID PINGREE | MENIFEE, CA | SUZ | American Suzuki / Primal Impulse / Bills Pipes / Shift / Alpinestars / Champion Nutrition / CTI | |
| 11 | 128 | STEVE ANDRICH | PERRIS, CA | SUZ | Tuning by Travis / Extreme / One Industries / Wiseco / Competition Direct / Emig Racing / Dunlop / CTi | |
| 12 | 168 | KEITH R JOHNSON | ALBUQUERQUE, NM | YAM | Pro Circuit / Bobby J's Yamaha / No Fear / Spy / Donnie Hanson MX Academy / Renthal / Applied Racing / Ceet / Works Connection / Innovation Sports / ZLT DesignsPJ1 / Bridgestone | |
| 13 | 587 | JERRY ALEMAN | MORENO VALLEY, CA | SUZ | Suzuki | |
| 14 | 686 | KRIS C ROURKE | SANTEE, CA | SUZ | SMP Clothing / Western Power Sports / Bel-Ray / Scott / IMS / FMF / Cirque Optics / 989 Studios / M&M Plastering / Motosports / Stan's Performance Motorcycles / Dutch Touch Tattooing & Piercing | |
| 15 | 285 | ROBB FLOTH | BOISE, ID | SUZ | Racin Station / Yamaha Sports Center / J&R Power Factory / Toolmart / Aggregate Construction / Zach Evans Construction / Scott | |
| 16 | 135 | DANNY R CARLSON | SUN CITY, CA | YAM | DHP / Bills Pipes / Fox / Shoei / Nova / Fasst | |
| 17 | 874 | HAROLD H HAGEMAN | HOLLISTER, CA | SUZ | Fox / FMF / Scott | |
| 18 | 136 | DANIEL M BLAIR | LODI, CA | YAM | Mach 1 Motorsports / FMF Racing / Bell Helmets / MX4 / Answer Racing / Spectro Oil / Bell Helmets / Ferodo Brakes / Scott Goggles / EVS Sports Protection | |
| 19 | 233 | LEVI A REID | LLANO, CA | YAM | FMF / ONeal / Fasst Company / Montclair Yamaha / Works Connection | |
| 20 | 26 | SCOTT SHEAK | CORONA, CA | KAW | Splitfire / Procircuit / Kawasaki | |
| Pos. | No. | Rider Name | Hometown | Machine | Sponsors |
| 1 | 33 | CASEY LYTLE | SANTA CLARITA, CA | YAM | Yamaha of Troy / Yamaha Motor Corp / Sinisalo / Oakley / Bell / Renthal / Alpinestars | |
| 2 | 25 | NATHAN RAMSEY | CORONA, CA | KAW | Splitfire / ProCircuit / Kawasaki | |
| 3 | 49 | MICHAEL A BRANDES | QUAIL VALLEY, CA | SUZ | Primal Impulse / Suzuki / Bill's Pipes / Shift / Shoei / Scott / Alphinestar | |
| 4 | 94 | RYAN D CLARK | ALBUQUERQUE, NM | KAW | R&S Kawasaki / Thor / Bridgestone / Alpinestars / Dragon / One Industries / EmigRacing / Individual / PTS / Arai / Hinson | |
| 5 | 98 | ERICK VALLEJO | MEXICO, NL | KAW | | |
| 6 | 144 | CHARLES DALE BOGARD | GRAND PRAIRIE, TX | SUZ | Stiffie West Wood / Reynard Mods / FMF / Pirelli / AGC | |
| 7 | 195 | BILLY R PAYNE | SIMI VALLEY, CA | KAW | Splitfire / Pro Circuit / Kawasaki | |
| 8 | 909 | STEPHAN DEMARTIS | FRANCE, | HON | FMF / Honda | |
| 9 | 989 | RODERICK THAIN | FRANCE, | HON | Honda FMF | |
| 10 | 606 | MATT P MAXIMOFF | LAKESIDE, CA | HON | Moto DeMarini / Alcoa / Pro Grip / Planet Honda / Dunlop / Bill's Pipe / ShockwareMVR / RG3 / Sunstar / Wiseco / Santa Cruz Concepts / Applied / V-Delta Force / Ceet / Arai / Works Connection / Alpine Stars | |
| 11 | 861 | DONOVAN MITCHELL | ORANGEVALE, CA | YAM | NCY Yamaha / AXO / Arai / FMF / Scott / IMS / Ceet / Cyromax / SunLine / Works Connection / CTi / SunStar / Renthal / Applied / Motul / All Pro Training / Donnie Hansen MX Academy | |
| 12 | 501 | STAN SLOBODA | CANADA, ON | SUZ | International Motorcycles / Shift / Torco / BK Designs / F48 Clothing / N-Style RP3 / Goat Eyewear | |
| 13 | 73 | CHRIS WHEELER | EL CAJON, CA | YAM | Siefert Motorsports / Spinali Auto Sales / Works Connection / FMF / Dunlop / Arnette / Allsport Braces / On The Pipe / A Pot Rentals | |
| 14 | 419 | CORY J FRANCIS | TOPEKA, KS | KTM | KTM / K-Style / Arai / Alpinestars / Pro Taper / Applied / Goat Goggles / Michelin / Twin-Air | |
| 15 | 690 | KENNY L BARTRAM | STILLWATER, OK | KTM | KTM / K-Style / Arai / Alpinestar / Applied / Pro Taper / Goat / FMF | |
| 16 | 182 | DENNIS S OWENS | NORMAN, OK | SUZ | Reynard Racing / Fox / Scott / Silkolene | |
| 17 | 43 | TRAVIS A PRESTON | HESPERIA, CA | SUZ | Moto XXX / Thor / Pro Circut / Dunlop / Arnette / PJ1 / Works Connection / Streightedje / The Racers Edge / Renthal / Epitaph / Fatwreck Chords | |
| 18 | 255 | TYSON M TAYLOR | TEMECULA, CA | SUZ | F&S Suzuki / Sinisalo / Works Connection / Arnette / Pro Action | |
| 19 | 112 | TOM CLOWERS JR | SANTEE, CA | SUZ | F&S Suzuki / Red Bull / Sinisalo / Smith Goggles / Bell Helmets / Maxima Oils / Alpinestars / Freestyle / CTI / Works Connection / N-Style / Dunlop Tires | |
| 20 | 99 | RYAN A DUFF | CHAVIES, KY | YAM | One Industries / Sinisalo / Pro Circuit / Enzo / Oakley / Bell / Straight Edje / CTI | |
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