is a Japanese motorcycle road racer who competes in the JSB1000 class of the All Japan Road Race Championship for Sanmei Team Taro with SDG, aboard a BMW M1000RR. He was the MFJ All Japan Road Race GP250 champion in 2001 and the European 250cc champion in 2003.

Career Sekiguchi began his Grand Prix career competing in the 1999 250cc Japanese Grand Prix. He suffered a serious accident during the 2007 Czech Republic Grand Prix warm-up at Brno, where he struck Marco Simoncelli's crashed Gilera bike at full speed; he was airlifted to a hospital in Brno, where doctors confirmed he had a broken pelvis and two fractured ribs. After losing his Grand Prix ride, Sekiguchi returned to Japan, to the MFJ All Japan Road Race GP250 Championship. He moved into the MFJ All Japan Road Race ST600 Championship in 2009, before switching to the MFJ All Japan Road Race J-GP2 Championship, where he finished as runner-up in 2011, 8th in 2012, 12th in 2013, 6th in 2014 and 3rd in 2015. In 2016 Sekiguchi appeared again in a Grand Prix as a wild card in the Moto2 class in his home race. In 2016, 2017 and 2018 he was again the J-GP2 runner-up and in 2019 he moved to the JSB1000 class, finishing 14th.

Career statistic Grand Prix motorcycle racing Source:Taro Sekiguchi career statistics at MotoGP.com Races by year (key) (Races in bold indicate pole position; races in italics indicate fastest lap)

Year Class Bike 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Pos Pts 1999 250cc Yamaha MAL JPNRet ESP FRA ITA CAT NED GBR GER CZE IMO VAL AUS RSA BRA ARG NC 0 2000 250cc Yamaha RSA MAL JPN14 ESP FRA ITA CAT NED GBR GER CZE POR VAL BRA PAC AUS 35th 2 2001 250cc Yamaha JPN10 RSA ESP FRA ITA CAT13 NED GBR GER CZE16 PORRet VAL17 PAC9 AUS12 MAL BRA 22nd 20 2002 250cc Yamaha JPNRet RSARet ESP15 FRA12 ITARet CAT16 NED17 GBR14 GER16 CZE POR BRA PAC MAL AUS VAL 29th 7 2004 250cc Yamaha RSA22 ESP15 FRA21 ITA21 CAT18 NED19 BRA20 GER17 GBR19 CZERet POR17 JPN18 QAT13 MALRet AUSRet VALRet 31st 4 2005 250cc Aprilia ESP POR CHN FRA ITA CAT NED GBR Ret GER 18 CZE Ret JPN 22 MAL 10 QAT 10 AUS Ret TUR Ret VAL 15 21st 13 2006 250cc Aprilia ESPDNS QAT TUR CHN FRA ITA CAT NED GBR GER CZE 17 MAL 13 AUS 19 JPN 18 POR 18 VAL 16 31st 3 2007 250cc Aprilia QATRet ESP17 TURRet CHN14 FRA14 ITA15 CAT15 GBR13 NED12 GER16 CZEDNS RSM POR JPN AUS18 MAL18 VAL19 23rd 13 2016 Moto2 TSR QAT ARG AME SPA FRA ITA CAT NED GER AUT CZE GBR RSM ARA JPN22 AUS MAL VAL NC 0

Suzuka 8 Hours Year Class Team Co-riders Bike Pos 2025 EWC Sanmei Team Taro Plusone with SDG Yudai Kamei Tatsuya Nakamura BMW S1000RR12th 2026 EWC Sanmei Team Taro Plusone with SDG Tatsuya Nakamura Keisuke Tanaka BMW M1000RR 43rd

All Japan Road Race Championship

Races by year

(key) (Races in bold indicate pole position; races in italics indicate fastest lap) Year Class Bike 1 2 3 4 5 6 7 8 9 10 Pos Pts 2025 JSB1000 BMW MOT SUG1 SUG2 MOT1 MOT2 AUT1 AUT2 OKA SUZ1 SUZ2 9th 67 2026 JSB1000 BMW MOT SUG1 SUG2 AUT1 AUT2 MOT1 MOT2 OKA SUZ1 SUZ2 11th* 38* Season still in progress.

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