| No. | Rider | Nat | Machine & Team | |
| 1 | ARNAUD VINCENT | FRENCH | KTM-RED BULL KTM | |
| 3 | DANIEL PEDROSA | SPANISH | TELEFONICA MOVISTAR JUNIOR TEAM HONDA | |
| 4 | LUCIO CECCHINELLO | ITALIAN | SAFILO OXYDO-LCR APRILIA | |
| 6 | MIRKO GIANSANTI | ITALIAN | MATTEONI RACING APRILIA | |
| 7 | STEFANO PERUGINI | ITALIAN | ABRUZZO RACING TEAM APRILIA | |
| 8 | MASAO AZUMA | JAPANESE | AJO MOTORSPORT HONDA | |
| 10 | ROBERTO LOCATELLI | ITALIAN | KTM-RED BULL KTM | |
| 11 | MAX SABBATANI | ITALIAN | ABRUZZO RACING TEAM APRILIA | |
| 12 | THOMAS LUTHI | SWISS | ELIT GRAND PRIX HONDA | |
| 14 | CHRIS MARTIN | BRITISH | SEEDORF RACING APRILIA | |
| 15 | ALEX DE ANGELIS | SAN MARINO | GLOBET.COM RACING APRILIA | |
| 17 | STEVE JENKNER | GERMAN | EXALT CYCLE RED DEVIL APRILIA | |
| 19 | ALVARO BAUTISTA | SPANISH | SEEDORF RACING APRILIA | |
| 21 | LEON CAMIER | BRITISH | METASYSTEM RACING SERVICE HONDA | |
| 22 | PABLO NIETO | SPANISH | MASTER-MXONDA-ASPAR TEAM APRILIA | |
| 23 | GINO BORSOI | ITALIAN | GLOBET.COM RACING APRILIA | |
| 24 | SIMONE CORSI | ITALIAN | TEAM SCOT HONDA | |
| 25 | IMRE TOTH | HUNGARIAN | TEAM HUNGARY HONDA | |
| 26 | EMILIO ALZAMORA | SPANISH | CAJA MADRID DERBI RACING DERBI | |
| 27 | CASEY STONER | AUSTRALIAN | SAFILO OXYDO-LCR APRILIA | |
| 31 | JULIAN SIMON | SPANISH | SEMPRUCCI ANGAIA MALAGUTI MALAGUTI | |
| 32 | FABRIZIO LAI | ITALIAN | SEMPRUCCI ANGAIA MALAGUTI MALAGUTI | |
| 33 | STEFANO BIANCO | ITALIAN | METIS GILERA RACING GILERA | |
| 34 | ANDREA DOVIZIOSO | ITALIAN | TEAM SCOT HONDA | |
| 36 | MIKA KALLIO | FINNISH | AJO MOTORSPORT HONDA | |
| 41 | YOUICHI UI | JAPANESE | STERILGARDA RACING APRILIA | |
| 42 | GIOELE PELLINO | ITALIAN | STERILGARDA RACING APRILIA | |
| 48 | JORGE LORENZO | SPANISH | CAJA MADRID DERBI RACING DERBI | |
| 58 | MARCO SIMONCELLI | ITALIAN | MATTEONI RACING APRILIA | |
| 63 | MIKE DI MEGLIO | FRENCH | FREESOUL RACING TEAM APRILIA | |
| 75 | ADRI DEN BEKKER | DUTCH | DB RACING TEAM HONDA wild card | |
| 76 | JARNO vd MAREL | DUTCH | TENNEN RACING HONDA wild card | |
| 77 | RAYMOND SCHOUTEN | DUTCH | SCHOUTEN RACING HONDA wild card | |
| 78 | PETER LENART | HUNGARIAN | METASYSTEM RACING SERVICE HONDA | |
| 79 | GABOR TALMACSI | HUNGARIAN | EXALT CYCLE RED DEVIL APRILIA | |
| 80 | HECTOR BARBERA | SPANISH | MASTER-MXONDA-ASPAR TEAM APRILIA | |
| 88 | ROBIN HARMS | DANISH | SEEDORF RACING APRILA wild card | |
| 89 | MARK VAN KREIJ | DUTCH | RACING TEAM MVK HONDA wild card | |
