Показники ефективності змагальної діяльності в бразильському джиу-джитсу

Purpose: to analyze the competitive activity of athletes in Brazilian jiu-jitsu. Materials and methods. Competitive matches of the 2025 Ukrainian Jiu-Jitsu Championship (Kyiv) among adult athletes (age category 18-35 years) were analyzed. A total of 125 matches were analyzed. The study used analysis of scientific and methodological literature, pedagogical observation, video analysis of competitive matches, quantitative assessment of technical and tactical actions, and descriptive statistics methods. The effectiveness of competitive activity was assessed based on indicators of effectiveness in standing and ground fighting and overall (integral) indicators. The assessment system took into account both completed actions and attempts recorded by referees' decisions (points, advantages, remarks). Results: the analysis revealed that competitive activity of athletes in Brazilian jiu-jitsu is characterized by a distinct feature, which manifests itself in the ratio of standing and ground fighting indicators. A deliberate transition to the ground (guard pull) is associated with an increase in submission activity, while a focus on takedowns in the standing position is associated with an increase in positional control and scoring efficiency. Analysis of the relationships between competitive performance indicators has made it possible to identify the main styles of fighting in Brazilian jiu-jitsu: submission-oriented, position-oriented, guard-oriented, counterattacking, and controlling. Conclusions. The analysis of the competitive activity of athletes in Brazilian jiu-jitsu has demonstrated the feasibility of using a system of quantitative indicators to assess the effectiveness of technical and tactical actions in different parts of the fight. The analysis of the relationships between indicators at different levels showed that the manner of conducting a fight in Brazilian jiu-jitsu is formed as an integral system in which strategic decisions at the stage of standing combat determine further tactical implementation on the ground and are reflected in integral performance indicators.