Kazuma Ōseto

Kazuma Ōseto (大瀬戸一馬, Ōseto Kazuma, born 5 August 1994) is a Japanese sprinter.

Kazuma Oseto

Personal information
Nationality	Japan
Born	(1994-08-05) 5 August 1994 Kanda, Miyako District, Fukuoka
Height	1.79 m (5 ft 10 in)
Weight	70 kg (154 lb)
Sport
Sport	Running
Event(s)	100 metres, 200 metres
University team	Hosei University
Club	Yaskawa Electric Track and field
Achievements and titles
Personal best(s)	100 m: 10.19 (Hiratsuka 2016) 200 m: 20.55 (Yokohama 2016) 60 m: 6.71 (Osaka 2013)
Medal record Men's athletics Representing Japan World Relays 2015 Nassau 4×100 m relay World Junior Championships 2012 Barcelona 4×100 m relay World Youth Championships 2011 Lille 100 m 2011 Lille Medley relay Summer Universiade 2015 Gwangju 4×100 m relay Asian Championships 2013 Pune 4×100 m relay 2015 Wuhan 4×400 m relay East Asian Games 2013 Tianjin 4×100 m relay 2013 Tianjin 100 m

He won a silver medal in the 100 m at the 2011 World Youth Championships in Athletics, behind Odail Todd.

Personal bests

Event	Time	Wind	Venue	Date
Outdoor
100 m	10.19 s	+1.7 m/s	Hiratsuka, Japan	11 June 2016
200 m	20.55 s	+0.6 m/s	Yokohama, Japan	22 May 2016
Indoor
60 m	6.71 s		Osaka, Japan	2 February 2013

Records

• 100 metres
  • Former Japanese junior and Japanese high school record holder - 10.23 s (wind: +1.3 m/s) (Hiroshima, 29 April 2012)
• 4×100 m relay
  • Current Asian and Japanese junior record holder - 39.01 s (relay leg:1st) (Barcelona, 13 July 2012)^[a]
  • Current Japanese university record holder - 38.44 s (relay leg:4th) (Tianjin, 9 October 2013)^[b]
  • Current Japanese high school record holder - 39.16 s (relay leg: 1st) (Fukuroi, 3 May 2012)^[c]
• Medley relay (100m×200m×300m×400m)
  • Former Japanese youth best holder - 1:50.69 s (relay leg: 1st) (Lille, 10 July 2011)^[d]
• 60 metres (Indoor)
  • Former Japanese junior record holder - 6.71 s (Osaka, 2 February 2013)

^a with Akiyuki Hashimoto, Asuka Cambridge, and Kazuki Kanamori

^b with Ryōta Yamagata, Shōta Iizuka, and Asuka Cambridge

^c with Akiyuki Hashimoto, Tatsurō Suwa, and Kazuki Kanamori

^d with Akiyuki Hashimoto, Shōtarō Aikyō, and Takuya Fukunaga

Competition record

Year	Competition	Venue	Position	Event	Notes
Representing Japan
2011	World Youth Championships	Lille, France	2nd	100 m	10.52 (wind: -0.3 m/s)
			2nd	Medley relay	1:50.69 (relay leg: 1st) NYB
2012	World Junior Championships	Barcelona, Spain	16th (sf)	100 m	10.56 (wind: -0.5 m/s)
			3rd	4×100 m relay	39.02 (relay leg: 1st)
2013	Asian Championships	Pune, India	2nd	4×100 m relay	39.11 (relay leg: 2nd)
	East Asian Games	Tianjin, China	3rd	100 m	10.48 (wind: -0.1 m/s)
			1st	4×100 m relay	38.44 (relay leg: 4th) GR, NUR
2014	World Relays	Nassau, Bahamas	5th	4×100 m relay	38.40 (relay leg: 1st)
	Continental Cup	Marrakech, Morocco	4th	4×100 m relay	39.50 (relay leg: 1st)
2015	World Relays	Nassau, Bahamas	3rd	4×100 m relay	38.20 (relay leg: 1st)
	Asian Championships	Wuhan, China	9th (sf)	100 m	10.45 (wind: +0.8 m/s)
			3rd	4×400 m relay	3:03.47 (relay leg: 3rd)
	Universiade	Gwangju, South Korea	1st	4×100 m relay	39.08 (relay leg: 1st)
	World Championships	Beijing, China	10th (h)	4×100 m relay	38.60 (relay leg: 1st)

National Championship

Year	Competition	Venue	Position	Event	Notes
2013	Japan Championships	Chōfu, Tokyo	6th	100 m	10.36 (wind: +0.7 m/s)
		Yokohama, Kanagawa	3rd	4×100 m relay	39.57 (relay leg: 2nd)
2014	Japan Championships	Fukushima, Fukushima	4th	100 m	10.35 (wind: +0.6 m/s)
		Yokohama, Kanagawa	1st	4×100 m relay	38.81 (relay leg: 2nd) GR
2015	Japan Championships	Niigata, Niigata	8th	100 m	10.55 (wind: -0.9 m/s)
		Yokohama, Kanagawa	1st	4×100 m relay	38.79 (relay leg: 2nd) GR
2016	Japan Championships	Nagoya, Aichi	4th	100 m	10.41 (wind: -0.3 m/s)
			5th	200 m	20.72 (wind: +1.8 m/s)
		Yokohama, Kanagawa	1st	4×100 m relay	38.89 (relay leg: 2nd)
2017	Japan Championships	Osaka, Osaka	25th (h)	100 m	10.55 (wind: -0.6 m/s)

External links

• Kazuma Ōseto at World Athletics
• Kazuma Ōseto at JAAF (in Japanese)
• Kazuma Ōseto on Twitter