Koga was born in Saga Prefecture. After graduating from elementary school, he entered the prestigious Kodo Gakusha judo school in Tokyo, honing his skills with the top judoka from around the nation.

Yoshida and Koga, two years apart in age, together devoted themselves in the sport at the prestigious Kodo Gakusha judo school in Tokyo. Yoshida entered the school when he was a third-year junior ...

(ATR) Japanese judo legend Toshihiko Koga, 53, was found dead at his home on Wednesday following a long battle with cancer. The Barcelona 1992 Olympic champion and three-time world champion had ...

2024 World Judo Tour. At -48kg Koga Wakana faced Kondo Mitsuki. Koga, taking away a narrow victory, scored a waza-ari in golden score. Mr. Marius VIZER, IJF President, was on hand to award the medals.