# Grand Prix moto du Japon 2005

Le Grand Prix moto du Japon 2005 est la douzième manche du championnat du monde de vitesse moto 2005. La compétition s'est déroulée du 16 au 18 septembre 2005 sur le circuit de Motegi.
C'est la 25e édition du Grand Prix moto du Japon.

## Classement des MotoGP

| Pos. | Pilote | Constructeur | Temps/Écart | Grille | Points |
| 1 | Loris Capirossi | Ducati | 43 min 30 s 499 | 1 | 25 |
| 2 | Max Biaggi | Honda | +1 s 479 | 5 | 20 |
| 3 | Makoto Tamada | Honda | +16 s 227 | 4 | 16 |
| 4 | Carlos Checa | Ducati | +22 s 148 | 9 | 13 |
| 5 | John Hopkins | Suzuki | +33 s 212 | 2 | 11 |
| 6 | Colin Edwards | Yamaha | +34 s 915 | 13 | 10 |
| 7 | Nicky Hayden | Honda | +45 s 894 | 6 | 9 |
| 8 | Kenny Roberts Jr | Suzuki | +56 s 498 | 8 | 8 |
| 9 | Toni Elias | Yamaha | +1 min 12 s 037 | 17 | 7 |
| 10 | Ruben Xaus | Yamaha | +1 min 34 s 927 | 19 | 6 |
| 11 | Franco Battaini | Blata | +1 tour | 20 | 5 |
| Abd. | Valentino Rossi | Yamaha | Abandon | 11 | |
| Abd. | Marco Melandri | Honda | Abandon | 3 | |
| Abd. | Alex Barros | Honda | Abandon | 10 | |
| Abd. | Sete Gibernau | Honda | Abandon | 7 | |
| Abd. | Shinya Nakano | Kawasaki | Abandon | 14 | |
| Abd. | Tohru Ukawa | Honda | Abandon | 15 | |
| Abd. | Alex Hoffman | Kawasaki | Abandon | 12 | |
| Abd. | Roberto Rolfo | Ducati | Abandon | 16 | |
| Abd. | Naoki Matsudo | Moriwaki | Abandon | 18 | |

## Classement des 250 cm$^3$

| Pos | Pilote | Constructeur | Temps/Écart | Grille | Points |
| 1 | Hiroshi Aoyama | Honda | 43 min 52 s 454 | 1 | 25 |
| 2 | Daniel Pedrosa | Honda | +5 s 313 | 7 | 20 |
| 3 | Casey Stoner | Aprilia | +7 s 781 | 9 | 16 |
| 4 | Yuki Takahashi | Honda | +10 s 222 | 6 | 13 |
| 5 | Randy de Puniet | Aprilia | +10 s 763 | 8 | 11 |
| 6 | Andrea Dovizioso | Honda | +11 s 054 | 5 | 10 |
| 7 | Alex De Angelis | Aprilia | +19 s 199 | 4 | 9 |
| 8 | Hector Barbera | Honda | +24 s 665 | 13 | 8 |
| 9 | Alex Debón | Honda | +37 s 683 | 16 | 7 |
| 10 | Sylvain Guintoli | Aprilia | +38 s 122 | 11 | 6 |
| 11 | Simone Corsi | Aprilia | +38 s 194 | 24 | 5 |
| 12 | Steve Jenkner | Aprilia | +53 s 211 | 15 | 4 |
| 13 | Mirko Giansanti | Aprilia | +56 s 364 | 21 | 3 |
| 14 | Alex Baldolini | Aprilia | +1 min 08 s 640 | 27 | 2 |
| 15 | Radomil Rous | Honda | +1 min 09 s 205 | 22 | 1 |
| 16 | Kouki Takahashi | Honda | +1 min 17 s 982 | 28 | |
| 17 | Martín Cárdenas | Aprilia | +1 min 25 s 096 | 29 | |
| 18 | Dirk Heidolf | Honda | +1 min 26 s 088 | 20 | |
| 19 | Mamoru Akiya | Yamaha | +1 min 33 s 286 | 30 | |
| 20 | Masaki Tokudome | Yamaha | +1 min 35 s 598 | 25 | |
| 21 | Mathieu Gines | Aprilia | +1 min 37 s 552 | 32 | |
| Abd. | Jorge Lorenzo | Honda | Abandon | 2 | |
| Abd. | Taro Sekiguchi | Aprilia | Abandon | 12 | |
| Abd. | Andrea Ballerini | Aprilia | Abandon | 26 | |
| Abd. | Sebastian Porto | Aprilia | Abandon | 10 | |
| Abd. | Chaz Davies | Aprilia | Abandon | 23 | |
| Abd. | Shuhei Aoyama | Honda | Abandon | 3 | |
| Abd. | Anthony West | KTM | Abandon | 14 | |
| Abd. | Ryuji Yokoe | Yamaha | Abandon | 18 | |
| Abd. | Jakub Smrž | Honda | Abandon | 19 | |
| Abd. | Arnaud Vincent | Fantic | Abandon | 31 | |
| Abd. | Roberto Locatelli | Aprilia | Abandon | 17 | |

## Classement des 125 cm$^3$

| Pos | Pilote | Constructeur | Temps/Écart | Grille | Points |
| 1 | Mika Kallio | KTM | 30 min 10 s 854 | 5 | 25 |
| 2 | Thomas Lüthi | Honda | +0 s 111 | 7 | 20 |
| 3 | Hector Faubel | Aprilia | +1 s 517 | 6 | 16 |
| 4 | Tomoyoshi Koyama | Honda | +2 s 349 | 2 | 13 |
| 5 | Mattia Pasini | Aprilia | +2 s 406 | 3 | 11 |
| 6 | Manuel Poggiali | Gilera | +2 s 619 | 8 | 10 |
| 7 | Sergio Gadea | Aprilia | +2 s 761 | 10 | 9 |
| 8 | Pablo Nieto | Derbi | +2 s 961 | 13 | 8 |
| 9 | Alvaro Bautista | Honda | +3 s 720 | 9 | 7 |
| 10 | Fabrizio Lai | Honda | +9 s 936 | 14 | 6 |
| 11 | Mike Di Meglio | Honda | +14 s 546 | 12 | 5 |
| 12 | Aleix Espargaro | Honda | +14 s 693 | 24 | 4 |
| 13 | Andrea Iannone | Aprilia | +15 s 699 | 19 | 3 |
| 14 | Toshihisa Kuzuhara | Honda | +20 s 833 | 20 | 2 |
| 15 | Enrique Jerez | Derbi | +22 s 562 | 17 | 1 |
| 16 | Raffaele de Rosa | Aprilia | +24 s 038 | 22 | |
| 17 | Lorenzo Zanetti | Aprilia | +25 s 907 | 18 | |
| 18 | Joan Olive | Aprilia | +27 s 014 | 27 | |
| 19 | Manuel Hernandez | Aprilia | +27 s 502 | 26 | |
| 20 | Alexis Masbou | Honda | +27 s 548 | 21 | |
| 21 | Imre Tóth | Aprilia | +47 s 987 | 25 | |
| 22 | Hirokaki Kuzuhara | Honda | +48 s 337 | 31 | |
| 23 | Federico Sandi | Honda | +48 s 524 | 34 | |
| 24 | Yuki Hamamoto | Honda | +51 s 086 | 32 | |
| 25 | Takumi Takahashi | Honda | +53 s 530 | 29 | |
| 26 | Arata Mori | Honda | +53 s 610 | 33 | |
| 27 | Vincent Braillard | Aprilia | +54 s 652 | 38 | |
| 28 | Karel Abraham | Aprilia | +55 s 454 | 30 | |
| 29 | Kazuki Hanafusa | Honda | +1 min 03 s 564 | 41 | |
| 30 | Jordi Carchano | Aprilia | +1 tour | 36 | |
| Abd. | Gabor Talmacsi | KTM | Abandon | 1 | |
| Abd. | Lukas Pesek | Derbi | Abandon | 23 | |
| Abd. | Dario Giuseppetti | Aprilia | Abandon | 28 | |
| Abd. | Sasha Hommel | Malaguti | Abandon | 40 | |
| Abd. | Marco Simoncelli | Aprilia | Abandon | 4 | |
| Abd. | Mateo Tunez | Aprilia | Abandon | 15 | |
| Abd. | Hiroomi Iwata | Honda | Abandon | 35 | |
| Abd. | Michele Pirro | Malaguti | Abandon | 37 | |
| Abd. | Sandro Cortese | Honda | Abandon | 16 | |
| Abd. | Julián Simón | KTM | Abandon | 11 | |
| Abd. | David Bonache | Honda | Abandon | 39 | |