Combat-sport performance depends on the interaction between technical skills and physical capacities, yet direct comparisons between grappling disciplines remain limited. The aim of this study was to compare the anthropometric profile and physical performance of elite judo and jiu-jitsu athletes. This cross-sectional study included 25 elite male athletes (judo—n = 12; jiu-jitsu—n = 13) assessed during a preparatory training phase. Anthropometric measures included age, training experience, height, and body mass, while physical performance was evaluated using dominant and non-dominant handgrip strength, squat jump (SJ), countermovement jump (CMJ), medicine ball throw with and without countermovement, and dynamic and isometric judogi-grip pull-up tests. Between-group comparisons were performed using independent sample tests, with effect sizes (ES) calculated. Judo athletes had greater training experience (13.25 ± 2.73 vs. 7.85 ± 4.36 years; p = 0.001; ES = 1.472) and higher SJ performance (38.71 ± 6.69 vs. 33.82 ± 4.74 cm; p = 0.045; ES = 0.850) compared to jiu-jitsu athletes. No significant between-group differences were observed for the remaining variables (p > 0.05). These findings indicate that no statistically significant differences were detected in most anthropometric and physical performance variables between elite judo and jiu-jitsu athletes, and the initially higher squat jump performance observed in judo athletes was no longer statistically significant after adjustment for training experience.
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