# Ryohei Sakaguchi

Ryohei Sakaguchi (阪口 良平, Sakaguchi Ryōhei, born 6 February 1975 in Habikino) is a Japanese racing driver currently competing in Super GT for Pacific Racing Team.
He won the 2003 Korean Formula 1800 Series and has five Super Taikyu titles to his name, two in ST-3 and three in ST-2.

## Super GT
### Gulf Racing with Pacific (2016)

With Pacific Racing Team switching to the Porsche 911 for the 2016 season, Sakaguchi remained with the team alongside Hiroki Yoshida.

### EIcars Bentley and one-off outing for Team Mach (2017–2019)

In early 2017, it was announced that EIcars Bentley TTO would join Super GT, with Sakaguchi and Yuji Ide as their drivers.
Sakaguchi remained with EIcars Bentley for the 2018 season, partnering Ide for the second season in a row. At the second Fuji round, Sakaguchi scored the team's best result with 13th position.
With the EIcars Bentley team ceasing operations in early 2019, Sakaguchi was left without a seat for most of the season, only making a one-off appearance for Team Mach at the fifth round of the season at Fuji as a third driver alongside Yuya Hiraki and Natsu Sakaguchi.

### muta Racing INGING (2020–2021)

Following his one-off outing for Team Mach in 2019, Sakaguchi returned to full-time competition in 2020, joining muta Racing INGING alongside Kazuto Kotaka. Sakaguchi scored two podiums, at Suzuka and at the season-finale at Fuji.
With Inging Motorsport merging their GT300 operations with Cars Tokai Dream28 ahead of the 2021 season, Sakaguchi joined Hiroki Katoh at the newly-rebranded muta Racing INGING. At Motegi, Sakaguchi scored his maiden win in GT300 by taking advantage of a mid-race safety car.

### Arnage Racing (2022)

In early 2022, Sakaguchi joined Arnage Racing, alongside Masaki Kano, Ryosei Yamashita and Takeshi Suehiro. Sakaguchi scored his only points of the season by finishing seventh at the fourth round of the season at Fuji.

### Pacific Racing Team (2023–)

After his stint at Arnage Racing, Sakaguchi returned to Pacific Racing Team after a seven year hiatus, alongside Liang Jiatong. At the second Suzuka round, Sakaguchi finished 11th, which would be the team's best result of the season.
In 2024, Sakaguchi returned to Pacific Racing Team, teaming up with Yusuke Tomibayashi. Sakaguchi scored a best result of 12th at Fuji.
Ahead of the 2025 season, it was announced that Sakaguchi would return to Pacific Racing Team, alongside the returning Tomibayashi and Yuta Fujiwara.

## Personal life

Sakaguchi is the uncle of 2020 Formula Regional Japan champion Sena Sakaguchi.

## Racing record
### Racing career summary

| Season | Series | Team | Races | Wins | Poles | F/Laps | Podiums | Points | Position |
| 1997 | Japanese Formula 3 Championship | Akiland Racing | 5 | 0 | 0 | 0 | 0 | 0 | NC |
| 2006 | Super GT – GT300 | 910 Racing With Team Ishimatsu | 2 | 0 | 0 | 0 | 0 | 4 | 33rd |
| 2007 | Super GT – GT300 | Yokoyama Racing | 2 | 0 | 0 | 0 | 0 | 5 | 25th |
| 2007 | Super GT – GT300 | Team Uematsu | 3 | 0 | 0 | 0 | 0 | 5 | 25th |
| 2008 | Super GT – GT300 | Team Uematsu Nova | 9 | 0 | 0 | 0 | 0 | 24 | 17th |
| 2010 | Super GT – GT300 | Team RQS Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | NC |
| 2012 | Japanese Formula 3 Championship – National Class | CMS Motor Sports Project | 2 | 0 | 0 | 0 | 1 | 6 | 8th |
| 2012 | Super GT – GT300 | JLOC | 2 | 0 | 0 | 0 | 0 | 2 | 26th |
| 2013 | Asian Le Mans Series – LMGTE | AAI-Rstrada | 1 | 0 | 0 | 0 | 1 | 18 | 3rd |
| 2013 | Super GT – GT300 | Arnage Racing | 2 | 0 | 0 | 0 | 0 | 4 | 24th |
| 2014 | Asian Le Mans Series – GT | AAI-Rstrada | 3 | 1 | 0 | 1 | 3 | 58 | 3rd |
| 2015 | Super GT – GT300 | Pacific Racing Team | 5 | 0 | 0 | 0 | 0 | 0 | NC |
| 2015–16 | Asian Le Mans Series – LMP3 | Team AAI | 2 | 0 | 0 | 0 | 1 | 18 | 4th |
| 2016 | Sepang 12 Hours – GT4 | Muta Racing TWS RC350 | 1 | 0 | 1 | 0 | 1 | N/A | 2nd |
| 2016 | Super GT – GT300 | Gulf Racing with Pacific | 7 | 0 | 0 | 0 | 0 | 3 | 22nd |
| 2016–17 | Asian Le Mans Series – LMP3 | FIST-Team AAI | 1 | 0 | 0 | 0 | 0 | 0 | 17th |
| 2017 | Super GT – GT300 | EIcars Bentley TTO | 6 | 0 | 0 | 0 | 0 | 0 | NC |
| 2017 | Super Taikyu – ST-3 | Tracy Sports | 6 | 1 | 1 | 4 | 3 | 79‡ | 4th‡ |
| 2018 | Super GT – GT300 | EIcars Bentley | 7 | 0 | 0 | 0 | 0 | 0 | NC |
| 2018 | Super Taikyu – ST-3 | Tracy Sports | 6 | 2 | 1 | 3 | 5 | 130.5‡ | 1st‡ |
| 2019 | Super GT – GT300 | Team Mach | 1 | 0 | 0 | 0 | 0 | 0 | NC |
| 2019 | Super Taikyu – ST-3 | Tracy Sports | 5 | 2 | 0 | 0 | 5 | 112.5‡ | 3rd‡ |
| 2020 | Super GT – GT300 | Advics muta Racing INGING | 8 | 0 | 2 | 0 | 2 | 34 | 9th |
| 2020 | Formula Regional Japanese Championship | Field Motorsport | 3 | 0 | 0 | 0 | 0 | 26 | 13th |
| 2020 | Super Taikyu – ST-1 | Tracy Sports | 2 | 0 | 0 | 0 | 2 | 50‡ | 2nd‡ |
| 2021 | Super GT – GT300 | muta Racing INGING | 8 | 1 | 0 | 1 | 1 | 23 | 11th |
| 2021 | Super Taikyu – ST-1 | Tracy Sports | 6 | 2 | 2 | 1 | 6 | 124‡ | 2nd‡ |
| 2022 | Super GT – GT300 | Arnage Racing | 8 | 0 | 0 | 0 | 0 | 4 | 29th |
| 2022 | Super Taikyu – ST-3 | Tracy Sports | 5 | 2 | 2 | 0 | 3 | 99‡ | 3rd‡ |
| 2022 | Super Taikyu – ST-5 | Mazda Spirit Racing | 1 | 0 | 0 | 0 | 0 | 5.5‡ | 13th‡ |
| 2022 | Toyota Gazoo Racing GR86/BRZ Cup | T by Two CABANA Racing | 6 | 0 | 0 | 0 | 0 | 1 | 23rd |
| 2023 | Super GT – GT300 | Pacific Racing Team | 7 | 0 | 0 | 0 | 0 | 0 | NC |
| 2023 | GT World Challenge Asia – GT4 Silver-Am | Akiland Racing | 6 | 0 | 1 | 1 | 5 | 94 | 3rd |
| 2023 | SRO Japan Cup – GT4 | Akiland Racing | 6 | 1 | 1 | 0 | 5 | 87 | 3rd |
| 2023 | Super Taikyu – ST-Q | Mazda Spirit Racing | 5 | 0 | ?? | ?? | ?? | 0‡ | NC‡ |
| 2023 | Super Taikyu – ST-4 | Over Drive | 1 | 0 | 0 | 0 | 0 | 70‡ | 5th‡ |
| 2024 | Super GT – GT300 | Pacific Racing Team | 8 | 0 | 0 | 0 | 0 | 0 | NC |
| 2024 | Super Taikyu – ST-Q | Mazda Spirit Racing | 5 | 1 | 0 | 0 | 2 | 0‡ | NC‡ |
| 2024 | SRO Japan Cup – GT4 Silver-Am | K-tunes Racing | 2 | 0 | 0 | 0 | 0 | 22 | 11th |
| 2025 | Super GT – GT300 | Pacific Racing Team | | | | | | | |
| 2025 | Super Taikyu – ST-Q | Mazda Spirit Racing | | | | | | *‡ | *‡ |
| Sources: ||||||||||
‡ Team standings

### Complete Super GT results

| Year | Team | Car | Class | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | DC | Points |
| 2006 | 910 Racing With Team Ishimatsu | Porsche 996 GT3 RSR | GT300 | SUZ | OKA | FUJ | SEP | SUG | SUZ 12 | MOT | AUT | FUJ 18 | 33rd | 4 |
| 2007 | Yokoyama Racing | Vemac RD320R | GT300 | SUZ 15 | OKA | FUJ 7 | | | | | | | 25th | 5 |
| 2007 | Team Uematsu | Vemac RD320R | GT300 | | | | SEP | SUG 16 | SUZ 10 | MOT | AUT | FUJ 13 | 25th | 5 |
| 2008 | Team Uematsu Nova | Vemac RD320R | GT300 | SUZ 8 | OKA 13 | FUJ 8 | SEP 4 | SUG 8 | SUZ Ret | MOT 15 | AUT 7 | FUJ 8 | 17th | 24 |
| 2010 | R'Qs Motorsports | Vemac RD350R | GT300 | SUZ | OKA | FUJ | SEP | SUG | SUZ 13 | FUJ | MOT | | NC | 0 |
| 2012 | JLOC | Lamborghini Gallardo RG-3 | GT300 | OKA | FUJ Ret | SEP | SUG | SUZ 10 | FUJ | AUT | MOT | | 26th | 2 |
| 2013 | Arnage Racing | Aston Martin V12 Vantage GT3 | GT300 | OKA | FUJ Ret | SEP | SUG | SUZ 8 | FUJ | FUJ | AUT | MOT | 24th | 4 |
| 2015 | Pacific Racing Team | McLaren MP4-12C GT3 | GT300 | OKA | FUJ | CHA | FUJ 16 | SUZ 22 | SUG 23 | AUT 20 | MOT Ret | | NC | 0 |
| 2016 | Gulf Racing with Pacific | Porsche 911 GT3R | GT300 | OKA DNS | FUJ Ret | SUG 13 | FUJ 21 | SUZ 13 | BUR 17 | MOT 22 | MOT 8 | | 23rd | 3 |
| 2017 | EIcars Bentley TTO | Bentley Continental GT3 | GT300 | OKA 20 | FUJ 16 | AUT 19 | SUG | FUJ 18 | SUZ Ret | CHA | MOT 22 | | NC | 0 |
| 2018 | EIcars Bentley | Bentley Continental GT3 | GT300 | OKA 21 | FUJ 22 | SUZ 18 | CHA | FUJ 13 | SUG 15 | AUT 18 | MOT 19 | | NC | 0 |
| 2019 | Team Mach | Toyota 86 MC GT300 | GT300 | OKA | FUJ | SUZ | CHA | FUJ 17 | AUT | SUG | MOT | | NC | 0 |
| 2020 | Advics muta Racing INGING | Toyota 86 MC GT300 | GT300 | FUJ 14 | FUJ 9 | SUZ 13 | MOT 16 | FUJ 7 | SUZ 2 | MOT 22 | FUJ 3 | | 9th | 34 |
| 2021 | muta Racing INGING | Lotus Evora MC GT300 | GT300 | OKA Ret | FUJ 10 | SUZ 9 | MOT 1 | SUG 16 | AUT 18 | MOT 24 | FUJ 12 | | 11th | 23 |
| 2022 | Arnage Racing | Toyota 86 MC GT300 | GT300 | OKA 16 | FUJ 25 | SUZ 20 | FUJ 7 | SUZ 23 | SUG 22 | AUT 21 | MOT 16 | | 29th | 4 |
| 2023 | Pacific Racing Team | Mercedes-AMG GT3 Evo | GT300 | OKA 23† | FUJ WD | SUZ 25 | FUJ 22 | SUZ 11 | SUG 17 | AUT 23 | MOT 19 | | NC | 0 |
| 2024 | Pacific Racing Team | Mercedes-AMG GT3 Evo | GT300 | OKA 21 | FUJ 12 | SUZ 17 | FUJ Ret | SUZ 14 | SUG 20 | AUT Ret | MOT 17 | | NC | 0 |
| 2025 | Pacific Racing Team | Mercedes-AMG GT3 Evo | GT300 | OKA | FUJ | SEP | FUJ | SUZ | SUG | AUT | MOT | | | |