Abstract
The aim of this study was to check if the tactical behavior efficiency and birthdate quartiles influenced the tactical performance of under-11 soccer players. The sample comprised of 102 under-11 soccer players, participants in regional level competitions. The instrument used for the tactical performance assessment was FUT-SAT. Multinomial Logistic Regression tests were used to verify the association between the variables, through the division of tactical behavior efficiency and tactical performance into terciles (p ≤ 0.05). Positive associations were verified between tactical behavior efficiency and tactical performance index for the defensive unity principle. Also, between the birthdate and the tactical performance index in players who were born within the last quartile of the year. It was concluded that tactical performance was influenced by birthdate and the tactical behavior efficiency.
Soccer; Tactics; Relative age effect
