# 2011 Japanese motorcycle Grand Prix

The 2011 Japanese motorcycle Grand Prix was the fifteenth round of the 2011 Grand Prix motorcycle racing season. It took place on the weekend of 29 September–2 October 2011 at the Twin Ring Motegi, located in Motegi, Japan. The Grand Prix, originally scheduled for 24 April, was moved to 2 October due to the effects of the Tōhoku earthquake and the Fukushima I nuclear accidents.
Due to concerns with possible radiation an independent survey of Motegi and the surrounding area was commissioned by FIM and Dorna Sports. That survey generated a preliminary report which stated "Based on the estimate dose it can be said by no doubt that the radiation risk during the race event is negligible." On 2 August the full report was received and the organisers stated that the race would take place as scheduled.

## MotoGP classification

| Pos. | No. | Rider | Team | Manufacturer | Laps | Time/Retired | Grid | Points |
| 1 | 26 | Dani Pedrosa | Repsol Honda Team | Honda | 24 | 42:47.481 | 4 | 25 |
| 2 | 1 | Jorge Lorenzo | Yamaha Factory Racing | Yamaha | 24 | +7.299 | 2 | 20 |
| 3 | 27 | Casey Stoner | Repsol Honda Team | Honda | 24 | +18.380 | 1 | 16 |
| 4 | 58 | Marco Simoncelli | San Carlo Honda Gresini | Honda | 24 | +23.550 | 6 | 13 |
| 5 | 4 | Andrea Dovizioso | Repsol Honda Team | Honda | 24 | +23.691 | 3 | 11 |
| 6 | 11 | Ben Spies | Yamaha Factory Racing | Yamaha | 24 | +37.604 | 5 | 10 |
| 7 | 69 | Nicky Hayden | Ducati Team | Ducati | 24 | +39.167 | 10 | 9 |
| 8 | 5 | Colin Edwards | Monster Yamaha Tech 3 | Yamaha | 24 | +45.023 | 14 | 8 |
| 9 | 7 | Hiroshi Aoyama | San Carlo Honda Gresini | Honda | 24 | +49.074 | 11 | 7 |
| 10 | 14 | Randy de Puniet | Pramac Racing Team | Ducati | 24 | +59.022 | 13 | 6 |
| 11 | 35 | Cal Crutchlow | Monster Yamaha Tech 3 | Yamaha | 24 | +1:13.964 | 12 | 5 |
| 12 | 64 | Kousuke Akiyoshi | LCR Honda MotoGP | Honda | 24 | +1:21.709 | 16 | 4 |
| 13 | 72 | Shinichi Ito | Honda Racing Team | Honda | 24 | +1:26.381 | 18 | 3 |
| Ret | 24 | Toni Elías | LCR Honda MotoGP | Honda | 17 | Accident | 15 | |
| Ret | 19 | Álvaro Bautista | Rizla Suzuki MotoGP | Suzuki | 13 | Accident | 8 | |
| Ret | 6 | Damian Cudlin | Pramac Racing Team | Ducati | 13 | Accident | 17 | |
| Ret | 8 | Héctor Barberá | Mapfre Aspar Team MotoGP | Ducati | 1 | Accident | 9 | |
| Ret | 46 | Valentino Rossi | Ducati Team | Ducati | 0 | Collision | 7 | |
| DNS | 17 | Karel Abraham | Cardion AB Motoracing | Ducati | | Injured | | |
| Sources: |||||||||

## Moto2 classification

| Pos. | No. | Rider | Manufacturer | Laps | Time/Retired | Grid | Points |
| 1 | 29 | Andrea Iannone | Suter | 23 | 43:25.007 | 3 | 25 |
| 2 | 93 | Marc Márquez | Suter | 23 | +1.999 | 1 | 20 |
| 3 | 12 | Thomas Lüthi | Suter | 23 | +3.686 | 2 | 16 |
| 4 | 65 | Stefan Bradl | Kalex | 23 | +4.313 | 8 | 13 |
| 5 | 3 | Simone Corsi | FTR | 23 | +4.647 | 6 | 11 |
| 6 | 15 | Alex de Angelis | Motobi | 23 | +4.813 | 7 | 10 |
| 7 | 38 | Bradley Smith | Tech 3 | 23 | +10.520 | 4 | 9 |
| 8 | 77 | Dominique Aegerter | Suter | 23 | +10.725 | 9 | 8 |
| 9 | 34 | Esteve Rabat | FTR | 23 | +11.387 | 17 | 7 |
| 10 | 36 | Mika Kallio | Suter | 23 | +12.803 | 12 | 6 |
| 11 | 19 | Xavier Siméon | Tech 3 | 23 | +18.259 | 16 | 5 |
| 12 | 13 | Anthony West | MZ-RE Honda | 23 | +20.815 | 22 | 4 |
| 13 | 51 | Michele Pirro | Moriwaki | 23 | +23.795 | 14 | 3 |
| 14 | 75 | Mattia Pasini | FTR | 23 | +24.388 | 10 | 2 |
| 15 | 44 | Pol Espargaró | FTR | 23 | +34.071 | 20 | 1 |
| 16 | 16 | Jules Cluzel | Suter | 23 | +38.236 | 26 | |
| 17 | 9 | Kenny Noyes | FTR | 23 | +39.505 | 29 | |
| 18 | 76 | Max Neukirchner | MZ-RE Honda | 23 | +39.609 | 28 | |
| 19 | 54 | Kenan Sofuoğlu | Suter | 23 | +42.296 | 18 | |
| 20 | 45 | Scott Redding | Suter | 23 | +44.162 | 15 | |
| 21 | 53 | Valentin Debise | FTR | 23 | +46.662 | 30 | |
| 22 | 14 | Ratthapark Wilairot | FTR | 23 | +46.950 | 25 | |
| 23 | 68 | Yonny Hernández | FTR | 23 | +49.625 | 27 | |
| 24 | 4 | Randy Krummenacher | Kalex | 23 | +50.590 | 36 | |
| 25 | 39 | Robertino Pietri | Suter | 23 | +52.044 | 35 | |
| 26 | 6 | Joan Olivé | FTR | 23 | +52.365 | 33 | |
| 27 | 63 | Mike Di Meglio | Tech 3 | 23 | +1:02.873 | 24 | |
| 28 | 7 | Tomoyoshi Koyama | TSR 6 | 23 | +1:35.559 | 32 | |
| 29 | 95 | Mashel Al Naimi | Moriwaki | 23 | +1:35.771 | 34 | |
| 30 | 72 | Yuki Takahashi | Moriwaki | 22 | +1 lap | 5 | |
| 31 | 40 | Aleix Espargaró | Pons Kalex | 20 | +3 laps | 13 | |
| Ret | 80 | Axel Pons | Pons Kalex | 17 | Retirement | 23 | |
| Ret | 64 | Santiago Hernández | FTR | 17 | Accident | 31 | |
| Ret | 18 | Jordi Torres | Suter | 0 | Collision | 11 | |
| Ret | 35 | Raffaele De Rosa | Suter | 0 | Collision | 19 | |
| Ret | 88 | Ricard Cardús | Moriwaki | 0 | Collision | 21 | |
| DNS | 30 | Takaaki Nakagami | Suter | | Injured | | |
| DNS | 33 | Sergio Gadea | Moriwaki | | Injured | | |
| OFFICIAL MOTO2 REPORT ||||||||

## 125 cc classification

| Pos. | No. | Rider | Manufacturer | Laps | Time/Retired | Grid | Points |
| 1 | 5 | Johann Zarco | Derbi | 20 | 39:49.968 | 1 | 25 |
| 2 | 18 | Nicolás Terol | Aprilia | 20 | +5.900 | 3 | 20 |
| 3 | 55 | Héctor Faubel | Aprilia | 20 | +13.605 | 2 | 16 |
| 4 | 25 | Maverick Viñales | Aprilia | 20 | +16.191 | 4 | 13 |
| 5 | 11 | Sandro Cortese | Aprilia | 20 | +23.422 | 7 | 11 |
| 6 | 94 | Jonas Folger | Aprilia | 20 | +23.661 | 8 | 10 |
| 7 | 23 | Alberto Moncayo | Aprilia | 20 | +24.034 | 5 | 9 |
| 8 | 26 | Adrián Martín | Aprilia | 20 | +24.171 | 9 | 8 |
| 9 | 52 | Danny Kent | Aprilia | 20 | +49.118 | 18 | 7 |
| 10 | 19 | Alessandro Tonucci | Aprilia | 20 | +51.393 | 10 | 6 |
| 11 | 84 | Jakub Kornfeil | Aprilia | 20 | +51.893 | 13 | 5 |
| 12 | 77 | Marcel Schrötter | Mahindra | 20 | +1:01.043 | 16 | 4 |
| 13 | 53 | Jasper Iwema | Aprilia | 20 | +1:04.921 | 15 | 3 |
| 14 | 21 | Harry Stafford | Aprilia | 20 | +1:05.606 | 24 | 2 |
| 15 | 63 | Zulfahmi Khairuddin | Derbi | 20 | +1:06.245 | 23 | 1 |
| 16 | 8 | Jack Miller | KTM | 20 | +1:07.653 | 26 | |
| 17 | 82 | Hikari Ookubo | Honda | 20 | +1:07.770 | 25 | |
| 18 | 50 | Sturla Fagerhaug | Aprilia | 20 | +1:11.052 | 30 | |
| 19 | 30 | Giulian Pedone | Aprilia | 20 | +1:15.954 | 20 | |
| 20 | 14 | Brad Binder | Aprilia | 20 | +1:16.227 | 27 | |
| 21 | 65 | Syunya Mori | Aprilia | 20 | +1:16.729 | 32 | |
| 22 | 36 | Joan Perelló | Aprilia | 20 | +1:17.514 | 29 | |
| 23 | 39 | Luis Salom | Aprilia | 20 | +1:40.618 | 12 | |
| 24 | 79 | Takehiro Yamamoto | Honda | 20 | +1:41.836 | 33 | |
| 25 | 89 | Luca Fabrizio | Aprilia | 19 | +1 lap | 35 | |
| Ret | 17 | Taylor Mackenzie | Aprilia | 17 | Retirement | 28 | |
| Ret | 10 | Alexis Masbou | KTM | 13 | Retirement | 21 | |
| Ret | 81 | Hyuga Watanabe | Honda | 10 | Retirement | 31 | |
| Ret | 99 | Danny Webb | Mahindra | 9 | Retirement | 19 | |
| Ret | 7 | Efrén Vázquez | Derbi | 8 | Retirement | 6 | |
| Ret | 31 | Niklas Ajo | Aprilia | 1 | Accident | 22 | |
| Ret | 3 | Luigi Morciano | Aprilia | 1 | Accident | 11 | |
| Ret | 28 | Josep Rodríguez | Aprilia | 1 | Retirement | 14 | |
| DNS | 96 | Louis Rossi | Aprilia | 0 | Did not start | 17 | |
| DNS | 80 | Jun Ohnishi | Honda | 0 | Did not start | 34 | |
| OFFICIAL 125cc REPORT ||||||||

## Championship standings after the race (MotoGP)

Below are the standings for the top five riders and constructors after round fifteen has concluded.
| Pos. | Rider | Points |
| 1 | Casey Stoner | 300 |
| 2 | Jorge Lorenzo | 260 |
| 3 | Andrea Dovizioso | 196 |
| 4 | Dani Pedrosa | 195 |
| 5 | Ben Spies | 156 |
| Pos. | Constructor | Points |
| 1 | Honda | 355 |
| 2 | Yamaha | 294 |
| 3 | Ducati | 162 |
| 4 | Suzuki | 73 |
* Note: Only the top five positions are included for both sets of standings.