An ippon is the maximum score in judo that immediately halts and ends a match, awarded for a technique that drives an opponent flat onto their back on the tatami, according to an explainer published by Olympics.com.
What Constitutes an Ippon Score in Judo
The ippon stands as the pinnacle of achievement in competitive judo. A competitor can secure this maximum score using standing throwing techniques or ground grappling manoeuvres. It can also be reached through an accumulation of scores, specifically when a fighter chains together two waza-aris during a single bout. An ippon is awarded when a judoka executes a throw that forces the adversary to land directly with their full back against the tatami mat, or causes them to roll onto their back. Olympic medallist Douglas Vieira, who became the first Brazilian to reach an Olympic judo final at the 1984 Los Angeles Games, notes that the ippon represents the scoring recognition for a technically flawless execution rather than a descriptor of the technique itself.
A high-profile instance of this scoring occurred during the Paris 2024 Olympic Games. Brazilian judoka Beatriz Souza defeated France’s Romane Dicko by ippon during the women’s +78kg semifinals, instantly concluding the contest.
Referees Award Waza-Ari and Yuko for Lesser Throws
When a throw lacks the precision or impact required for the maximum score, referees award lesser values. A waza-ari translates to a half-point. This scoring call applies when an opponent fails to land squarely on their entire back. As noted in the Olympic records, competitors can accumulate two waza-aris to automatically trigger an ippon.
Beneath the waza-ari sits the yuko, a lower-tier score that does not accumulate toward a match-ending threshold. Vieira explains that a yuko is awarded when a judoka falls sideways and slightly forward onto the mat. Even if a competitor tallies 10 yukos during a bout, a single waza-ari scored by their opponent remains superior under the sport’s scoring hierarchy.
Referee Signals During Ground Inmovilisations
Mat work introduces specific referee terminology and time-dependent scoring thresholds. Once a judoka applies an osaekomi hold-down pin, the referee extends an arm downward over the competitors and calls out “Osaekomi” to start the official match clock.
The duration of the pin determines the score awarded by the officials:
- Five seconds of sustained inmovilisation yields a yuko.
- Ten seconds of control upgrades the score to a waza-ari.
- Twenty seconds on the clock completes the sequence, triggering an automatic ippon.
If the pinned judoka successfully escapes or breaks the hold before the 20-second threshold expires, the referee breaks the sequence by calling out “Toketa.”
Three Shidos Result in Disqualification
Disciplinary actions in judo begin with warnings rather than outright punishment. A shido serves as an official admonestation issued by the referee for infractions such as false attacks, defensive passivity, or negative judo where one competitor refuses to engage while the opponent attempts to initiate action. A shido is visually tracked with a yellow card.
Accumulating three shidos during a single contest results in disqualification through a hansoku-make penalty, indicated by a red card. Severe unsportsmanlike conduct can result in an immediate direct hansoku-make, ending the match and disqualifying the offender from the tournament. Referees conclude every match using the official command “sore-made,” meaning “that is all.”
World Judo Championship Schedule Details
The global judo calendar turns toward the 2026 World Judo Championships. Competition matches for the traditional Japanese martial art are scheduled to take place from October 4 through October 11, 2026.
