How Is Judo Scored?
Ippon, waza-ari and the yuko score brought back for 2026
Judo is scored on a three-tier system. Ippon is the instant win — a clean throw on the back, a 20-second pin, or a submission to a strangle or armlock. Waza-ari is the half score; two waza-ari make an ippon. For the 2026–28 Olympic cycle the IJF has reinstated yuko, a lower score removed in 2017, awarded for a side landing or a 5–9 second pin. Yuko are counted but never add up to a waza-ari — they only break ties when the waza-ari count is level. Three shido penalties equal disqualification (hansoku-make).
How the Judo Scoring System Works
Judo has no running points total. A contest is decided by discrete scores that a referee awards for throws, pins and submissions, ranked in a strict hierarchy: ippon, then waza-ari, then yuko.
Ippon is the highest score and ends the contest immediately. It is the outright win — nothing else can beat it. A single ippon settles the match no matter what has happened before.
Waza-ari is the half score. It does not end the contest on its own, but two waza-ari combine into an ippon (waza-ari-awasete-ippon), which does. A single waza-ari beats any number of the lower yuko score.
Yuko is the lowest score. Reinstated by the International Judo Federation for the 2026–28 cycle after being removed in 2017, yuko rewards actions that fall short of a waza-ari. Yuko are counted separately (1, 2, 3…) but never add up to a waza-ari, however many are scored.
At the end of regulation time the winner is the athlete with an ippon; if neither has one, the higher waza-ari count wins; and if that is level, the higher yuko count wins. Only when both counts are equal does the contest go to golden score. Judo's scoring shares the DNA of other judged Olympic disciplines — see how form and difficulty combine in artistic gymnastics scoring.
| Score | From A Throw | From A Pin | Effect |
|---|---|---|---|
| Ippon | Clean throw on the back with control, speed and force | 20 seconds | Instant win — contest ends |
| Waza-ari | Near-ippon throw missing one criterion; largely on the side | 10–19 seconds | Two waza-ari = ippon |
| Yuko | Side or side-to-front landing; on the buttocks or upper back | 5–9 seconds | Counts as a tie-breaker; never adds to a waza-ari |
What Counts as an Ippon, the Instant Win?
An ippon is the maximum score in judo and ends the contest the moment it is awarded. There are three routes to it, and any one of them is enough.
A decisive throw. The classic ippon is a throw that puts the opponent largely on their back with control, considerable force and speed. All four elements — on the back, control until landing, force and speed — must be present. Miss one and the throw is downgraded to waza-ari.
A 20-second pin. If a fighter holds a recognised osae-komi (hold-down) for 20 seconds after the referee calls "osae-komi", it is an ippon. A shorter hold scores waza-ari or yuko instead.
A submission. An opponent who taps out or says "maitta" to a shime-waza (strangle) or kansetsu-waza (armlock to the elbow) concedes an ippon. Armlocks are legal only against the elbow joint.
Two other points matter. Two waza-ari are automatically combined into an ippon — so a fighter one waza-ari ahead is always one score from victory. And deliberately landing in a bridge to avoid a throw is still ruled an ippon, because bridging carries a serious injury risk.
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Waza-ari and Yuko: the Partial Scores
Below ippon sit the two partial scores, separated by how complete the throw is or how long a pin is held.
Waza-ari is awarded for a throw that is nearly an ippon but misses exactly one of the four criteria — for example, the opponent lands largely on their side rather than flat on the back, or the throw lacks the speed of a full ippon. A pin held for 10 to 19 seconds also scores waza-ari. Crucially, two waza-ari make an ippon and end the contest.
Yuko is the score the IJF brought back for 2026. It covers landings that are clearly below a waza-ari: a side landing 90 degrees or more toward the front, a landing on the buttocks, on the upper back, or on the side of the shoulder and one elbow. In groundwork, a pin held for 5 to 9 seconds scores a yuko.
The single most important rule about yuko is what it does not do: yuko never accumulate into a waza-ari. Ten yuko still lose to one waza-ari. Yuko exist only to separate fighters who are otherwise level — a tie-breaking layer beneath the two higher scores, described in the judo sport overview.
Penalties in Judo: Shido and Hansoku-make
Judo penalises negative or dangerous behaviour with two sanctions: the minor shido and the match-ending hansoku-make.
Shido is a warning for tactical or technical faults. Common causes are non-combativity (stalling without a genuine attack), a false attack, adopting an extreme defensive posture, stepping out of the contest area, and illegal grips such as grabbing the legs or trousers. A referee can give up to two shido without deciding the contest.
A third shido becomes a hansoku-make, and the opponent wins by ippon. Importantly, a shido does not add a score to the opponent — it is a penalty, not a point. Under IJF rules a fighter cannot win on shido difference at the end of regulation; if the scores are level the contest goes to golden score instead.
Direct hansoku-make is reserved for serious or dangerous acts — for example an armlock or strangle applied with no chance for the opponent to escape, or diving head-first onto the mat. It ends the contest instantly and, at major events, can carry disqualification from the rest of the day's competition.
For the 2026–28 cycle the IJF also widened what referees weigh: groundwork activity now counts toward combativity, rewarding athletes who genuinely attack on the mat rather than only on their feet.
How Tie-Breaking and Golden Score Work
Senior judo contests last four minutes for both men and women. If a fighter scores an ippon — or a second waza-ari that combines into one — the contest ends early.
If the four minutes run out without an ippon, the winner is decided by the scoreboard hierarchy: more waza-ari wins; if the waza-ari count is level, more yuko wins. This is exactly why the yuko was reinstated for 2026 — the extra layer means fewer contests finish dead level, so fewer go to overtime.
If the athletes are still tied on both waza-ari and yuko, the contest goes to golden score — sudden-death overtime with no time limit. Every score and shido from regulation carries over.
In golden score the first meaningful action ends it: the first athlete to register any score — yuko, waza-ari or ippon — wins, and so does an athlete whose opponent picks up a decisive penalty. Because a yuko is a score again, a single small throw can now settle an overtime that, under the 2017–2025 rules, might have dragged on. Objective, tie-breaking scores like this are common across officiated Olympic sports, from judo to Olympic weightlifting judging.
What Changed for 2026: the Return of Yuko
The headline change to judo scoring for the 2026–28 Olympic cycle is the return of the yuko, a score the IJF removed at the start of 2017.
Between 2017 and 2025 judo used only two scores — ippon and waza-ari — plus penalties. That simplicity was praised for clarity but criticised for sending too many close contests to golden score, where the result could hinge on a single lapse or a stray penalty.
The IJF presented the reinstated yuko at its technical meeting in Istanbul, trialled it across the 2025 World Judo Tour, and confirmed it for the season and the two-year Olympic qualification period running toward Los Angeles 2028. The definition is precise: yuko covers a side landing 90 degrees or more toward the front, landings on the buttocks or upper back, and — in groundwork — a 5–9 second pin.
The practical effect is more granularity. A fighter who lands two or three small throws now leads on the scoreboard instead of drawing level, and referees have a cleaner way to reward attacking judo that does not quite earn a waza-ari. For officials and organisers, that means one more score to track live — exactly the kind of hierarchy JudgeMate's scoring tools are built to record.
Worked Example: a Tie Broken by Yuko
Here is how the reinstated yuko decides a contest that, before 2026, would have gone to golden score.
Minute 1 — Sato throws. Sato lands a throw that puts her opponent Riku largely on the side, missing one ippon criterion. The referee calls waza-ari. Score: Sato 1 waza-ari, Riku 0.
Minute 2 — Riku counters. Riku answers with her own near-perfect throw, also ruled waza-ari. The waza-ari count is now level at 1–1. Neither is combined into an ippon, because each fighter has only one.
Minute 3 — Riku adds two small throws. Riku scores two throws that each land the opponent on the side toward the front — two yuko. They do not merge into a waza-ari, so the waza-ari count stays 1–1.
Final scoreboard: waza-ari 1–1, yuko 2–0 to Riku.
Result — Riku wins. With the waza-ari count level, the higher yuko count decides it. Under the 2017–2025 two-score system the fighters would have been tied 1–1 on waza-ari with no tie-breaker, sending the contest to golden score. The reinstated yuko settles it in regulation.
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Frequently Asked Questions
Primary Sources
- New Rules: What to Remember (IJF Technical Meeting, Istanbul) — International Judo Federation
- IJF Sport and Organisation Rules (Refereeing Rules) — International Judo Federation
- Judo 101: Rules, Regulations and Scoring — NBC Olympics
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