2022 Volume 54 Issue 2 Pages 103-113
The purpose of this study was to clarify the tactical actions of nage-waza that are effective in scoring in judo by using a notational match performance analysis, and to provide useful knowledge in the practical field of coaching. For this purpose, we examined the relationship between (1) the type of nage-waza, (2) whether there was a renraku-henka in the nage-waza, and (3) the combination of the tori and the uke’s kumite and whether an athlete scored any points. Data from a total of 441 matches in the −60kg, −81kg, and +100kg weight classes in international competitions held in 2020 were used.
The tactical actions associated with whether points were scored or not were the type of nage-waza and whether they included a renraku-henka. The combination of tactical actions that influenced the points scored was a combination of henka-waza and te-waza, and in some weight classes, combinations of henka-waza and other techniques were also effective. The combination of henka-waza and sumi-otoshi, which is classified as a te-waza, showed the highest scoring ratio in all weight classes.
This study suggests for the first time that henka-waza, especially sumi-otoshi, applied during or after the opponent’s attack, is an effective tactical action for scoring regardless of weight class. These new findings indicate that in current judo competitions it is important to not only pursue single techniques but to construct tactical actions relative to the opponent. They are also expected to be useful for specific guidance in coaching.
