Total entries: 19
| No. | Rider(s) | Bike | Sponsors |
| 10J | Honda CRF450R | Parkinson Brothers Racing,Performance Cycle & Dyno,MDR,Brent Armbruster,Wazee,H&N Wind,D&D Exhaust,SSR,Durelle,G2 Ergonomics,Legue,Fluidyne,CP Pistons,Carrillo | |
| 18M | Yamaha YZ 450F | Kirland Racing,Pro 1 Racing Heads,Axo,Bell,Motorcycle Superstore,Urban Custom Bikes,Lightshoe,Motorcycle Accessories Shop,Short Block Charlie,Crankworks,Pruczinski Family,Allsport,Liberty Tire,Lens Racing,Moto Graphic,Rase,Durelle Racing,Rekluse,G2 Ergono | |
| 21L | Honda CRF450R | Diesel Minnesota,Anderson Bros Motorsports,Motorcyclesuperstore.com,Larsons Cycle,Motorex,Acerbis,Engine Ice,Supertrapp,Randys Toy Repair | |
| 23Y | Honda CRF450R | Baywide Glass,Hacienda Pools,Arne Sign & Decal,Pacific Custom Fab,Sluggo,Raggio Racing | |
| 23Z | Honda CRF450R | Mack Daddy Racing,Rogers Racing,GFY Racing,Motion Pro,Alpinestars,PJ 1 Lube,Saddlemen | |
| 25A | Honda CRF450R | DFW Honda,RLT Racing,McElroy Packaging,Herrs,Invisible Glass,Lancaster Honda,Arai,RASE,Motion Pro,Alpinestars,CHCC,KN Filters,G2 Ergo,Spectro,Wiseco,Bob Hilbert,PMP Sprockets,Saddlemen,GoPro,ISC,Evans,Hinson,RHC,Victory Circle,D&D,All Balls,Kicker,Boughner,R.Hanson,B.Simcox,100%,West Coast Hotshoe,Matrix,Axo,Arlen Ness,Wurth,Spa&Pool Place,ER&T,Mad Hog | |
| 28Z | Honda CRF450R | APF Motorcycle Salvage,Cap's Powder Coating,Turners Auto Wrecking,Bruce & Betty Barnett,B&M Transmissons | |
| 30S | Honda CRF450R | Highs Dairy Stores,Foard Racing,Carroll Branded Fuels,WKR,Ellicott City Motorsports,Boughner Suspension,Ride Academy,BCTRA.com,Triple J Racing,Sidi,Troy Lee Designs,Taylor White Racing,Shenandoah Honda,Moto Hose,Bell,Engine Ice,Ride Engnie,JBJ Racing | |
| 41P | Kawasaki KX450F | Cassidy Racing,WKR,Brett Weibler,Kayl Kolkman,Hot Cams,Hot Rods,Cylinder Works,Pivot Works,Motosports.com | |
| 44E | Suzuki RMZ 450 | Southland Racing,Fontana Radiator,Pro Circuit,Corona Motorsports | |
| 55A | Honda CRF450R | Montgomeryville Cycle Center,Roy Miller Engines,Leathers,Penske Susp.,Motorcycle Superstore,REV-IT Built Engines,Saddlemen Seats,K&N Air Filters,Motion Pro,NHF Racing,Silkolene Lube,Nick's Precision Machine,CP Pistons,Sidi Boots,Vortex Sprockets,A&A Racing,Jemco Exhaust,Cycra Handguards,Chicken Hawk Tire,Hot Shoe by George | |
| 66Y | Honda CRF450R | Weirbach Racing,KDM Forestry,Frankie Morris,General Engineering,Barnett,Spectro,DynoJet,K&N,Saddlemen,White Lightning Retrievers,PMP Sprockets,Motion Pro,Spider Grips,Evans Coolant,Cheney Engineering,G2 Ergonmics,Works,CP Pistons & Carrillo Rods,Web Cams,Foudree's Graphics,Sunco,Pro Wheel,Durelle Racing,Supertrapp, | |
| 74Z | Honda CRF450R | 831 Pinnit,GP Sports,Blonix,Hooper Motorsports,Shift,Eks Brand,Pod MX,Motion Pro,Hammerhead,FMF,Motorex,Leatt Brace,Acerbis,Nick Nazizzi | |
| 81Z | Honda CRF450R | Stockton Moto,Stockton Honda Yamaha,AXO,Greene Construction | |
| 90M | Suzuki RMZ 450 | Colbert Power Sports,Motorcycle Superstore, Bell Helmets, Moto Concepts,Dumonde Tech,Spider Grips,EVS,Fox,AGV,Eye Consultants, Lightshoe | |
| 93L | Honda CRF450R | Speed & Strength,Tucker Rockey,Redbull,EBC,Freegon,Bazzaz | |
| 95Z | Honda CRF450R | RGR,DC-10,Axo,Vortex,Arai Helmets,Hap's Leathers,Black Magic Racing,Motion Pro | |
| 96B | Honda CRF450R | Weirbach Race Team,Sunnyside Cycle,Arai,Motul,Motion Pro,DC Enterprise,Dynotech,DP Brakes,Alpinestar,Smith Optics,Zoladz Const.,K&N,Racer Tape,Applied Business Systems,RK Chain,Aury Grips | |
| 99Y | Honda CRF450R | SM Racing,Spy,Arai,Mud,R&S |
