Revised: April 17 2024 – 5:30 AM
*Provisional Entry List is subject to change
| Number | Rider | Hometown | Bike | |
|---|---|---|---|---|
| 1 |  Chase Sexton | La Moille, IL  | KTM 450 SX-F | |
| 2 |  Cooper Webb | Newport, NC | Yamaha YZ450F | |
| 3 |  Eli Tomac | Cortez, CO | Yamaha YZ450F | |
| 7 |  Aaron Plessinger | Hamilton, OH | KTM 450 SX-F | |
| 9 |  Adam Cianciarulo | Port Orange, FL | Kawasaki KX450SR | |
| 14 |  Dylan Ferrandis | Avignon, FL  | Honda CRF450R | |
| 15 |  Dean Wilson | Scotland, United Kingdom  | Honda CRF450R | |
| 18 |  Jett Lawrence | Landsborough, Australia  | Honda CRF450R | |
| 21 |  Jason Anderson | Edgewood, NM | Kawasaki KX450SR | |
| 22 |  Fredrik Noren | Lidköping, Sweden  | Kawasaki KX450SR | |
| 23 |  Grant Harlan | New | Justin, TX | Yamaha YZ450F |
| 27 |  Malcolm Stewart | Haines City, FL | Husqvarna FC 450 | |
| 28 |  Christian Craig | Temecula, CA | Husqvarna FC 450 | |
| 29 |  Ty Masterpool | New | Paradise, TX | Kawasaki KX450 |
| 32 |  Justin Cooper | Cold Spring Harbor, NY | Yamaha YZ450F | |
| 44 |  Josh Hill | New | Yoncalla, OR | Yamaha YZ450F |
| 45 |  Colt Nichols | Muskogee, OK | Beta 450 RX | |
| 46 |  Justin Hill | Yoncalla, OR | KTM 450 SX-F | |
| 51 |  Justin Barcia | Monroe, NY | GasGas MC 450F | |
| 52 |  Derek Drake | San Luis Obispo, CA | Suzuki RM-Z450 | |
| 55 |  Mitchell Oldenburg | Updated | Alvord, TX | Honda CRF450R |
| 56 |  Jeremy Hand | Mantua, OH | Honda CRF450R | |
| 62 |  Kevin Moranz | New | Topeka, KS | KTM 450 SX-F |
| 67 |  Benny Bloss | Oak Grove, MO | Beta 450 RX | |
| 70 |  Jerry Robin | Hamel, MN | Yamaha YZ450F | |
| 74 |  Josh Cartwright | Tallahassee, FL | Kawasaki KX450SR | |
| 81 |  Cade Clason | New | Arcadia, OH | Kawasaki KX450 |
| 82 |  Mitchell Harrison | New | Lansing, MI | Kawasaki KX450 |
| 84 |  Anthony Rodriguez | New | Caracacus, Venezuela  | KTM 450 SX-F |
| 91 |  Devin Simonson | New | Laurinburg, NC | Yamaha YZ450F |
| 96 |  Hunter Lawrence | Landsborough, Australia | Honda CRF450R | |
| 97 |  Tristan Lane | New | Deland, FL | KTM 450 SX-F |
| 118 |  Cheyenne Harmon | Ovilla, TX | Yamaha YZ450F | |
| 125 |  Vince Friese | New | Cape Girardeau, MO | Honda CRF450R |
| 129 |  Lane Shaw | Alvin, TX | Yamaha YZ450F | |
| 148 |  Justin Rodbell | Prince Frederick, MD | KTM 450 SX-F | |
| 173 |  Hunter Schlosser | El Paso, TX | KTM 450 SX-F | |
| 282 |  Theodore Pauli | Edwardsville, IL | Kawasaki KX450SR | |
| 382 |  Rylan Munson | Colorado Springs, CO | Kawasaki KX450 | |
| 411 |  Scott Meshey | Zephyrhills, FL | KTM 450 SX-F | |
| 412 |  Jared Lesher | New | Elderton, PA | Yamaha YZ250 |
| 447 |  Deven Raper | New | Mesa, AZ | Kawasaki KX450 |
| 501 | Scotty Wennerstrom | Tyler, TX | Kawasaki KX450SR | |
| 512 |  Austin Cozadd | New | Attalla, AL | Kawasaki KX450 |
| 645 |  Colby Copp | Los Banos, CA | KTM 450 SX-F | |
| 672 | Brandon Pederson | Los Fresnos, TX | Yamaha YZ450F | |
| 824 |  Carter Stephenson | Rolla, MO | Kawasaki KX450 | |
| 848 |  Joan Cros | Manlleu, Spain  | Kawasaki KX450 | |
| 976 |  Joshua Greco | Valparaiso, IN | GasGas MC 450F | |
| 981 |  Austin Politelli | Menifee, CA | GasGas MC 450F FE | |
| 996 | Preston Taylor | New | Hastings, NE | Kawasaki KX450 |