U12 Male Kumite (10 and 11-year-olds): -30 kg, -35 kg, -40 kg, -45 kg, +45 kg.
U12 Female Kumite (10 and 11-year-olds): -30 kg, -35 kg, -40 kg, + 40 kg.
U12 Male Kata (10 and 11-year-olds)
U12 female Kata (10 and 11-year-olds)

U14 Male Kumite (12 and 13-year-olds): -40 kg, -45 kg, -50 kg, -55 kg, +55 kg.
U14 Female Kumite (12 and 13-year-olds): -42 kg, -47kg, +47kg
U14 Male Kata (12 and 13-year-olds)
U14 Female Kata (12 and 13-year-olds)

Kumite for children between 12 and 14 years of age:
• For techniques to the head and neck (Jodan area) no contact is allowed.
• Any contact to the jodan area, however slight, in principle will be penalized.
• A correctly performed technique to the head or neck in principle will be considered a score at a distance up to 10 cm.
• The bout duration is one and a half minute.
• No use of protective equipment that is not WKF approved.
• WKF Facemask and Chest Protector for Children are used.

Kumite for children under 12 years of age:
• Techniques to all scoring areas (Jodan and Chudan) are all to be controlled short of target.
• Any contact to the jodan area, however slight, in principle will be penalized.
• A correctly performed technique to any scoring area in principle will be considered a score at a distance up to 10cm.
• Even controlled techniques to the body (chudan area) in principle will not be considered a score if they make contact beyond surface touch.
• No sweeping, or other takedown techniques, are allowed.
• The bout duration is one and a half minute.
• The fighting area may be reduced from 8x8 mts. to 6x6 mts. if desired by the organizer of the event.
• Participants should participate in a minimum of two bouts per competition.
• No use of protective equipment that is not WKF approved.
• WKF Facemask and Chest Protector for Children are used.

For children under the age of 10, kumite competition is arranged as competition pair against pair demonstrating one and half minute of sparring where each pair cooperate to display techniques. The performances are Judged pair versus pair, by Hantei based on the usual criteria for Hantei decision in kumite bouts — but here evaluating one pair’s performance against the other.

Kata competition for those under 14 years of age:
There are no specific deviations from the standard rules, but a limitation to the kata list to less advanced kata may be used.

Kata competition for those under 12 years of age:
There are no specific deviations from the standard rules, but a limitation to the kata list to less advanced kata may be used.
Participants failing to complete their kata should be given the option of a second attempt without reduction of score.