KOGA Toshihiko - Lenda do Judô - YouTube
Hayato KOGA / IJF.org
How do you develop a throw? - KL Judo
Judo Club Wermelskirchen gewinnt viele Titel beim Koga-Cup
JudoInside - Genki Koga Judoka
JudoInside - News - Toshihiko Koga's other techniques (Part 2: Seoi-related)
1. Bocklemünder Judo Club e.V. DJK
JudoInside - News - Toshihiko Koga's other judo techniques (Part 1: Seoi-nage variations)
Judo Legends: Toshihiko Koga Tribute Highlights 1967 - 2021 (古賀 稔彦 1967 - 2021) - YouTube
Toshihiko Koga
Tribute to Toshihiko Koga - YouTube
Judo Legends: Toshihiko Koga Tribute Highlights 1967 - 2021 (古賀 稔彦 1967 - 2021) - YouTube
JudoInside - News - The six losses of judo legend Toshihiko Koga
Genki KOGA / IJF.org
Koga Judo Club
Koga-Cup - NWJV - Nordrhein-Westfälischer Judo-Verband e.V. Duisburg
SDicke – JCWK
Renowned Judoka Toshihiko Koga Dies at 53 | Tokyo Weekender
Genki Koga: What can we expect from the son of Toshihiko Koga?
News Archiv - RTV-Judo
Toshihiko Koga | Ippon Seoi and Seoi Nage Compilation Highlights - YouTube
Toshihiko Koga | Ippon Seoi and Seoi Nage Compilation Highlights - YouTube
JUDO TECHNIQUES: Toshihiko Koga 古賀 稔彦 (JPN) - Ippon Seoi Nage - YouTube
Highlights of World Judo Championships Doha 2023 - People's Daily Online
