Kazuma Ōseto

Kazuma Ōseto (大瀬戸一馬) is a Japanese sprinter.

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

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)
 * Current Japanese university record holder - 38.44 s (relay leg:4th) (Tianjin, 9 October 2013)
 * Current Japanese high school record holder - 39.16 s (relay leg: 1st) (Fukuroi, 3 May 2012)
 * Medley relay (100m×200m×300m×400m)
 * Former Japanese youth best holder - 1:50.69 s (relay leg: 1st) (Lille, 10 July 2011)
 * 60 metres (Indoor)
 * Former Japanese junior record holder - 6.71 s (Osaka, 2 February 2013)


 * with Akiyuki Hashimoto, Asuka Cambridge, and Kazuki Kanamori
 * with Ryōta Yamagata, Shōta Iizuka, and Asuka Cambridge
 * with Akiyuki Hashimoto, Tatsurō Suwa, and Kazuki Kanamori
 * with Akiyuki Hashimoto, Shōtarō Aikyō, and Takuya Fukunaga