Glossary of Judo terminology
Koka (Effect / Minor score)
In Judo, a "Koka" (Effect / Minor score) is awarded when a Nage waza (Throwing techniques) results in the opponent being thrown quickly and strongly in a controlled manner, ending with one of the opponent's shoulders, hips, or thighs against the floor. A "Koka" (Effect / Minor score) is also awarded when the opponent is pinned for 10 seconds or longer, but less than 15 seconds, by an Osae komi waza (Hold-down techniques).
In the IJF (International Judo Federation) Judging Committee meeting convened in Bangkok, Thailand on October 20, 2008, the "Koka" (Effect / Minor score) evaluation of a Waza was abolished, and it was officially removed from the IJF rules from January 1, 2009.