Kata competition

Individual kata

One performer executes the kata alone. Used in karate and some other martial arts. The performer selects from an approved list of kata for each round. Judging assesses the individual's technical execution, power, rhythm, and presentation. Common at karate competitions where individual kata is an Olympic discipline.

Pair kata (duo)

Two performers — typically designated as tori (the one executing the technique) and uke (the one receiving it) — execute the kata together. In judo, all classical kata are performed in pairs. The pair must demonstrate synchronisation, technical accuracy, and the correct relationship between tori and uke throughout the sequence. The judges assess both performers as a unit.

Group or team kata

Three or more performers execute the kata simultaneously in synchronisation. Common in karate team kata, where three athletes perform in unison and are judged collectively on synchronisation, precision, and presentation. In some traditional martial arts, group kata involve larger numbers of performers.

Points scoring

Each judge awards a numerical score, typically on a scale such as 1–10 or 5.0–10.0. The highest and lowest scores are sometimes dropped to reduce the effect of outlier judgements, and the remaining scores are summed or averaged to produce a final result. Athletes or pairs with the highest total score advance or win. This system is used in karate kata at international level.

Flag decision (hantei)

Judges raise a flag simultaneously to indicate which of two performances they consider better. The majority vote determines the winner. This head-to-head comparison format is used in judo kata competition, where two pairs perform the same kata in the same round and judges choose the better pair. It produces a direct elimination structure similar to a match result.

What judges assess

Across sports, judges evaluate similar core qualities: technical accuracy of each technique in the sequence, correct posture and body position throughout, appropriate power and speed at the right moments, rhythm and timing, zanshin (awareness and presence, the mental state visible in the performer), and — for pair or group kata — synchronisation between performers.

No weigh-in

Kata competition does not use weight categories, so there is no weigh-in process. Registration closes and categories are finalised based on the declared age group, grade, and kata entries. This simplifies the morning significantly compared to a fight event, but registration data still needs to be verified for grade accuracy.

Performance area requirements

Kata is typically performed on a mat or marked floor area. The space does not need to be as large as a fight mat — a 6×6 m or 8×8 m area is often sufficient — but it must be clear, level, and free of distractions. Judges sit at one end of the performance area with a clear sightline. For pair kata, the starting positions are marked.

Environment and noise

Kata competition requires significantly more quiet than fight competition. Judges are assessing subtle qualities — posture, rhythm, zanshin — that require concentration. Running kata and fight events simultaneously in the same hall is possible but requires separating them by sufficient distance and, ideally, using different areas of the venue. Loud PA announcements from the fight area during a kata performance disrupt both performers and judges.

Timing per performance

Each kata performance takes between 1 and 5 minutes depending on the kata. Allow additional time for bowing protocol, judges to score or raise flags, and the score to be recorded and announced. In practice, plan for 5–8 minutes per performance slot including transitions. A category with 16 entries in an elimination format requires approximately 8 bouts across multiple rounds.

Judging panel requirements

Kata judges must be qualified to judge kata specifically — fight referee licences do not automatically qualify someone to judge kata. Confirm judge qualifications with your national federation and ensure you have a sufficient number of qualified judges for the number of simultaneous performance areas you plan to run.

Results and announcements

In a points system, scores are typically displayed or announced after each performance. In a flag system, the result of each head-to-head is announced immediately. The bracket advances in the same direction as fight competition — winners continue, losers are eliminated — but the result recording is different. Ensure your results team understands the kata format before the event.

Pair competition. Classical kata include Nage-no-kata (throwing forms), Katame-no-kata (grappling forms), and others. Judged by flag decision in competition (hantei). IJF runs an annual World Kata Championships.

Individual or team (3 performers). Athletes choose from an approved kata list each round. Judged on points by a panel. Included in the Olympic Games programme (Tokyo 2020). World Karate Federation (WKF) governs international competition.

Individual or pair. Fixed sequences at each grade level. Judged on accuracy and presentation by a panel. World Taekwondo runs Poomsae World Championships as a separate event from the fight competition.

Various disciplines including Kendo (kata with wooden swords), Naginata, and Iaido. Often more focused on preservation of technique than sport competition, but formal competition exists at national and international level.