Which side-out actions discriminate higher-ranked teams in the Brazilian U-17 men's volleyball championship?

This study aimed to determine which side-out actions discriminate top-ranked teams in an elite Brazilian youth volleyball competition. We analysed 56 matches from the Brazilian Under-17 Men's National Championship, including 67,878 side-out-related actions. The 16 teams were grouped into pairs from A to H according to their final classification in the Special and First Divisions. Multinomial logistic regression was used to estimate the odds ratios associated with belonging to each ranking group, using Group A as the reference category. The results showed that higher-ranked teams were more likely to use overhead pass reception, involve the outside hitter near the setter during serve reception, execute faster offensive patterns, and achieve greater attack effectiveness. These findings indicate that side-out organization, especially reception type, receiver role, attack tempo, and attack outcome, discriminates teams according to final ranking position in elite Brazilian U-17 male volleyball. Training programs for youth volleyball should therefore emphasize side-out quality through reception stability, offensive speed, and effective attack execution.