is a Japanese track and field sprinter who specialises in the 400 metres. His personal best in the event is 45.85 seconds. He competed in the 4 × 400 metres relay at the 2017 World Championships.

Personal bests EventTime (s)CompetitionVenueDate200 m21.46 (wind: +0.7 m/s)Kansai Corporate ChampionshipsOsaka, Japan12 May 2018300 m33.43Izumo MeetIzumo, Japan21 April 2019400 m45.85National ChampionshipsNiigata, Japan27 June 2015

International competition YearCompetitionVenuePositionEventTimeRepresenting 2017World RelaysNassau, Bahamas (h)4×400 m relay (relay leg: 4th)World ChampionshipsLondon, United Kingdom15th (h)4×400 m relay3:07.29 (relay leg: 4th)

National titles YearCompetitionVenueEventTimeRepresenting Sumitomo Electric2018National Corporate ChampionshipsOsaka, Osaka4×400 m relay3:08.79 (relay leg: 3rd)National ChampionshipsKitakyushu, Fukuoka4×400 m relay3:09.35 (relay leg: 1st)

References

External links

Kosuke Horii at Sumitomo Electric