Tadahiro Kosaka [SEP] sex or gender
Tadahiro Kosaka
Tadahiro Kosaka (; born February 10, 1960 in Wakayama) is a retired Japanese male race walker. He competed for Japan at three consecutive Summer Olympics: 1988, 1992 and 1996.
References.
- sports-reference
Jump
- Norifumi Yamashita
Men's Javelin Throw 
- Kazuhiro Mizoguchi
- Masami Yoshida
Men's 20 km Walk
- Hirofumi Sakai
- Tadahiro Kosaka
Men's 50 km Walk
- Tadahiro Kosaka
br
Women's 10,000 metres
- Akemi Matsuno
Women's Marathon 
- Eriko Asai
- Kumi Araki
- Misako Miyahara
Women's High Jump
- Megumi Sato
Women's Javelin Throw
- Emi Matsui
Boxing.
Men's Light Flyweight (– 48