| Personal information | |
|---|---|
| Nationality |  Japan |
| Born | (1994-08-05) 5 August 1994 (age 29) 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 | |
Kazuma Ōseto (大瀬戸一馬, Ōseto Kazuma, born 5 August 1994) is a Japanese sprinter.
He won a silver medal in the 100 m at the 2011 World Youth Championships in Athletics, behind Odail Todd.[1]
| 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 | |
| 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)[2] | |
| 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) | |
| 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)[3] | ||
| 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)[3] 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)[3] 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)[3] | ||
| 2017 | Japan Championships | Osaka, Osaka | 25th (h) | 100 m | 10.55 (wind: -0.6 m/s) |
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