2013 Japanese motorcycle Grand Prix
The 2013 Japanese motorcycle Grand Prix was the seventeen round of the 2013 MotoGP season. It was held at the Twin Ring Motegi in Motegi on 27 October 2013. Jorge Lorenzo won the MotoGP race to gain Yamaha its 200th victory in the 500cc/MotoGP class. Pol Espargaró clinched the Moto2 world title after title contenders Scott Redding and Esteve Rabat crashed out in the race.
This was Valentino Rossi's 200th race in the 500cc/MotoGP class.
Classification
MotoGP
Moto2
The first attempt to run the race was interrupted on the opening lap, following an incident involving Scott Redding, Álex Mariñelarena and Esteve Rabat. For the restart, the race distance was reduced from 23 to 15 laps.Moto3
Championship standings after the race (MotoGP)
Below are the standings for the top five riders and constructors after round seventeen has concluded.
;Riders' Championship standings
| Rider | Points |
| 1 |  Marc Márquez | 318 |
| 2 | Jorge Lorenzo | 305 |
| 3 | Dani Pedrosa | 280 |
| 4 |  Valentino Rossi | 224 |
| 5 |  Cal Crutchlow | 188 |
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Honda | 369 |
| 2 | Yamaha | 356 |
| 3 | Ducati | 147 |
| 4 | ART | 94 |
| 5 | FTR Kawasaki | 43 |
- Note: Only the top five positions are included for both sets of standings.
