Background: Small-sided games are an adjusted form of official games that are often used in training scenarios to introduce a specific tactical issue to team sports players. Besides the acute effects of SSGs on players' performance, it is expectable that the consistent use of these drill-based games induces adaptations in the technical execution and tactical behaviors of youth team sports players.Objective: This systematic review with meta-analysis was conducted to assess the effects of SSG programs on the technical execution and tactical (...) behaviors of young and youth team sports players.Data Sources: The data sources utilized were PubMed, Scopus, SPORTDiscus, and Web of Science.Study Eligibility Criteria: Young and youth team sports players (i.e., 17 and <17 SSG training sessions, respectively.Conclusions: This systematic review and meta-analysis revealed a significant beneficial effect of using SSG training programs for enhancing technical execution in young and youth players. The benefits were similar despite the various numbers of training sessions applied. Further studies should add tactical behaviors as one of the outcomes for controlling the effects of SSG training programs. (shrink)