Judo Academy logo

Rules explained

How Judo Scoring Actually Works

Judo scoring looks confusing from the sidelines because the rules have changed more than once in the last decade — including one score that was removed, then brought back. Here's how it works under the current IJF rules for the 2026–2028 competition cycle.

Ippon — the full point

Ippon ends the match immediately, whoever is ahead. It's awarded for:

Waza-ari — the half point

Waza-ari is awarded for a throw that's missing just one of the ippon criteria (say, enough control but not quite enough force), or for a hold lasting 10–19 seconds. Two waza-ari in the same match combine into an ippon and end the contest — this is the one combination rule everyone remembers, and it hasn't changed.

Yuko — back for the 2026–2028 cycle

Yuko was removed from the rules in 2017, which is why a lot of older explanations online (and honestly, some out-of-date apps and articles) will tell you it no longer exists. The IJF reinstated it for the current 2026–2028 Olympic cycle. It's awarded for:

Yuko scores never combine into a waza-ari, no matter how many are scored — they only matter as a tie-breaker when both judoka have the same number of waza-ari at the end of the match.

Shido — penalties, not points for the opponent

A shido is a warning for a rule infringement — passivity, an illegal grip, stepping out of bounds repeatedly, and similar. Unlike some other combat sports, a shido does not add a score to the opponent's side. What it does instead: a third shido results in hansoku-make — automatic disqualification.

All of this — including the Yuko comeback — is covered in Judo Academy's rules quiz, kept up to date with the current IJF rule set instead of whatever was true a few years ago.

Get Judo Academy