| Katsuyuki Nakasuga | |
| Nationality: | Japanese |
| Birth Date: | 9 August 1981 |
| Birth Place: | Fukuoka Prefecture, Japan |
| Current Team: | Yamaha Factory Racing Team |
| Bike Number: | 21 |
| Motogp Active Years: | – |
| Motogp Manufacturers: | Yamaha |
| Motogp Championships: | 0 |
| Motogp Last Season: | 2018 |
| Motogp Last Position: | 26th (2 pts) |
| Motogp Race Starts: | 9 |
| Motogp Race Wins: | 0 |
| Motogp Podiums: | 1 |
| Motogp Poles: | 0 |
| Motogp Fastest Laps: | 0 |
| Motogp Total Points: | 65 |
| 250 Active Years: | – |
| 250 Manufacturers: | Yamaha |
| 250 Championships: | 0 |
| 250 Last Season: | 2004 |
| 250 Last Position: | NC (0 pts) |
| 250 Race Starts: | 3 |
| 250 Race Wins: | 0 |
| 250 Podiums: | 0 |
| 250 Poles: | 0 |
| 250 Fastest Laps: | 0 |
| 250 Total Points: | 4 |
is a Japanese motorcycle racer.[1] He races a factory Yamaha YZF-R1 in the JSB1000 class of the All Japan Road Race Championship. He has won the Suzuka 8 Hours four times (2015, 2016, 2017, 2018) and the JSB1000 championship title twelve times (2008, 2009, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2021, 2022, 2023).
A former competitor in the MFJ All Japan Road Race GP250 Championship between 1999 and 2005, Nakasuga moved into the All Japan Superbike Championship, winning the title in 2008, 2009, 2012, 2013, 2014, 2015 and 2016 for Yamaha. After losing the title to Honda's Takumi Takahashi in 2017, he added an eighth and ninth title to his resume in 2018 and 2019.
Nakasuga had his premier class Grand Prix start at the Valencia circuit at the final race of the 2011 season as a replacement for the injured Jorge Lorenzo, finishing a creditable sixth place. In 2012, he made a wild-card appearance for Yamaha at his home race at Motegi, finishing ninth, before making another appearance for the factory team at Valencia, this time in place of the injured Ben Spies. Taking advantage of a wet circuit and numerous retirements ahead of him, Nakasuga was able to finish a distant second behind race winner Dani Pedrosa, becoming the only Japanese rider to score a podium finish in any class during 2012.
He won the Suzuka 8 Hours in 2015 with Pol Espargaró and Bradley Smith, in 2016 with Espargaró and Alex Lowes and in 2017 and 2018 with Lowes and Michael van der Mark.
| Season | Class | Motorcycle | Team | Race | Win | Podium | Pole | FLap | Pts | Plcd | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 250cc | Yamaha | Technospeed Nakasuga | 1 | 0 | 0 | 0 | 0 | 4 | 31st | ||
| 250cc | Yamaha | SP Tadao Racing Team | 1 | 0 | 0 | 0 | 0 | 0 | NC | ||
| 250cc | Yamaha | SP Tadao Racing Team | 1 | 0 | 0 | 0 | 0 | 0 | NC | ||
| MotoGP | Yamaha | Yamaha Factory Racing | 1 | 0 | 0 | 0 | 0 | 10 | 18th | ||
| MotoGP | Yamaha | Yamaha YSP Racing Team Yamaha Factory Racing | 2 | 0 | 1 | 0 | 0 | 27 | 18th | ||
| MotoGP | Yamaha | Yamaha YSP Racing Team | 1 | 0 | 0 | 0 | 0 | 5 | 22nd | ||
| MotoGP | Yamaha | Yamalube Racing Team with YSP | 1 | 0 | 0 | 0 | 0 | 4 | 26th | ||
| MotoGP | Yamaha | Yamaha Factory Racing Team | 1 | 0 | 0 | 0 | 0 | 8 | 23rd | ||
| MotoGP | Yamaha | Yamalube Yamaha Factory Racing | 1 | 0 | 0 | 0 | 0 | 5 | 23rd | ||
| MotoGP | Yamaha | Yamalube Yamaha Factory Racing | 1 | 0 | 0 | 0 | 0 | 4 | 26th | ||
| MotoGP | Yamaha | Yamalube Yamaha Factory Racing | 1 | 0 | 0 | 0 | 0 | 2 | 26th | ||
| Total | 12 | 0 | 1 | 0 | 0 | 69 |
(key) (Races in bold indicate pole position, races in italics indicate fastest lap)
| Year | Team | Co-Riders | Bike | Pos | |
|---|---|---|---|---|---|
| 2011 | Monster Yamaha – YART |  Gwen Giabbani Igor Jerman | Yamaha YZF-R1 | Ret | |
| 2012 | Monster Energy Yamaha – YART |  Noriyuki Haga Tommy Hill | Yamaha YZF-R1 | Ret | |
| 2013 | Monster Energy Yamaha – YART |  Broc Parkes Josh Waters | Yamaha YZF-R1 | 8th | |
| 2014 | Monster Energy Yamaha with YSP | Josh Brookes Broc Parkes | Yamaha YZF-R1 | 4th | |
| 2015 | Yamaha Factory Racing Team |  Pol Espargaró Bradley Smith | Yamaha YZF-R1 | 1st | |
| 2016 | Yamaha Factory Racing Team | Pol Espargaró Alex Lowes | Yamaha YZF-R1 | 1st | |
| 2017 | Yamaha Factory Racing Team | Alex Lowes Michael van der Mark | Yamaha YZF-R1 | 1st | |
| 2018 | Yamaha Factory Racing Team | Alex Lowes Michael van der Mark | Yamaha YZF-R1 | 1st | |
| 2019 | Yamaha Factory Racing Team | Alex Lowes Michael van der Mark | Yamaha YZF-R1 | 2nd | |
| Sources:[2] [3] | |||||