Este primer sábado de 2004 empieza en Anaheim ( Los Ángeles – California ) la primera prueba puntuable para las THQ AMA Supercross Series que a la vez será la tercera valedera para el Campeonato del Mundo que se inició en Sevilla un mes antes.
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Estos son los dorsales para toda la temporada, así podrás identificar a tus pilotos favoritos con sus nuevos cascos y equipos.
| Dorsal | Nombre | Procedencia |
| 3 | Michael Brown | Johnson City, TN |
| 4 | Ricky Carmichael | Havana, FL |
| 5 | Mike LaRocco | South Bend, IN |
| 6 | Steve Lamson | Camino, CA |
| 7 | Greg Albertyn | Coto De Caza, CA |
| 8 | Grant Langston | Lake Elsinore, CA |
| 10 | Larry Ward | Florence, SC |
| 11 | Ezra Lusk | Bainbridge, GA |
| 12 | David Vuillemin | Corona, CA |
| 14 | Kevin Windham | Centreville, MS |
| 15 | Timmy Ferry | Largo, FL |
| 16 | John Dowd | Ludlow, MA |
| 17 | Robbie Reynard | Oklahoma City, OK |
| 18 | Brock Sellards | Sherrodsville, OH |
| 19 | Doug Henry | Torrington, CT |
| 20 | Damon Huffman | Canyon Country, CA |
| 21 | Stephane Roncada | France |
| 22 | Chad Reed | Australia |
| 23 | Kyle Lewis | Henderson, NV |
| 24 | Ernesto Fonseca | Canyon Lake, CA |
| 25 | Nathan Ramsey | Menifee, CA |
| 26 | Michael Byrne | Lake Elsinore, CA |
| 27 | Nicholas Wey | Dewitt, MI |
| 28 | Heath Voss | Mico, TX |
| 29 | Ivan Tedesco | Lake Elsinore, CA |
| 30 | Craig Anderson | Corona, CA |
| 31 | Keith R Johnson | Albuquerque, NM |
| 32 | Andrew Short | Colorado Springs, CO |
| 33 | Kelly Smith | Ludington, MI |
| 34 | Clark Stiles | Athens, AL |
| 35 | Chris Gosselaar | Corona, CA |
| 36 | Sean Hamblin | Sun City, CA |
| 37 | Eric Sorby | Murrieta, CA |
| 38 | Jason Thomas | Melrose, FL |
| 39 | Michael Brandes | Aptos, CA |
| 40 | Brett Metcalfe | Temecula, CA |
| 41 | Brian Gray | St. Augustine, FL |
| 42 | Steve Boniface | Temecula, CA |
| 43 | Ryan Clark | Albuquerque, NM |
| 44 | Ryan Mills | Clintondale, NY |
| 45 | Joaquim Rodrigues | Temecula, CA |
| 46 | Daryl Hurley | Riverside, CA |
| 47 | Matthieu Lalloz | Corona, CA |
| 48 | Paul Carpenter | Ithaca, NY |
| 49 | Branden Jesseman | Fombell, PA |
| 50 | Josh Woods | Flint, MI |
| 51 | Josh Demuth | Haslet, TX |
| 52 | Greg Schnell | Rancho Cucamonga, CA |
| 53 | Robert Kiniry | Skaneateles, NY |
| 54 | Steve Mertens | Sonoma, CA |
| 55 | Casey Lytle | Saugus, CA |
| 56 | Tim Weigand | Chatsworth, CA |
| 57 | Joe Oehlhof | Hesperia, CA |
| 58 | Tyler Evans | Canyon Lake, CA |
| 59 | Danny Smith | Middleton, ID |
| 60 | Broc Hepler | Kittanning, PA |
| 61 | Troy Adams | Brooksville, FL |
| 62 | Travis Preston | Hesperia, CA |
| 63 | Keith S Johnson | Carver, MA |
| 64 | James Povolny | Mendota Hts, MN |
| 65 | Richie Owens | Wildomar, CA |
| 66 | Damien Plotts | Millmont, PA |
| 67 | Jean Sebastien Roy | PQ, Canada |
| 68 | Joshua Hansen | Elbert, CO |
| 69 | Bobby Bonds | Bakersfield, CA |
| 70 | Brian Mason | Nashville, IL |
| 71 | David Pingree | Temecula, CA |
| 72 | Tony Lorusso | Rocky Hill, CT |
| 73 | Evan Laughridge | San Jacinto, CA |
| 74 | Erick Vallejo | Mexico |
| 75 | Billy Laninovich | Escondido, CA |
| 76 | Michael Treadwell | Enfield, CT |
| 77 | Ted Campbell | Meridian, ID |
| 78 | Kevin W Johnson | Albuquerque, NM |
| 79 | Doug Dehaan | Ontario, Canada |
| 80 | Josh Summey | Stanley, NC |
| 81 | Marco Dube | PQ, Canada |
| 82 | Craig Decker | Lake Elsinore, CA |
| 83 | Michael Blose | Phoenix, AZ |
| 84 | Tyson Hadsell | Hudson, FL |
| 85 | Jeremias Israel | Laguna Beach, CA |
| 86 | Ty Wallace | Phoenixville, PA |
| 87 | Jeff Gibson | Westerville, OH |
| 88 | Buddy Antunez | Temecula, CA |
| 89 | Blair Morgan | Prince Albert, Canada |
| 90 | Paul Veracka | Bridgewater, MA |
| 91 | Brad Modjewski | Hatley, WI |
| 92 | Ryan Dudek | Long Beach, CA |
| 93 | Tommy Hofmaster | Pearl City, IL |
| 94 | Dustin Nelson | El Cajon, CA |
| 95 | Turbo Reif | Atascadero, CA |
| 96 | Barry Carsten | Bayville, NJ |
| 97 | Jeremy Chaussee | Lancaster, CA |
| 98 | Tom Welch | Charlotte Hall, MD |
| 99 | Bruce Stratton | Clifton Springs, MD |
| 103 | Sebastien Tortelli | Temecula, CA |
| 199 | Travis Pastrana | Davidsonville, MD |
| 259 | James Stewart | Haines City, FL |