Strategies for Improving Game Speed in Small-Sided Football Among Children Aged 12–13 Years

This study examines the influence of game speed and the tactical efficiency of offensive actions on the performance of junior football players aged 12–13 years under small-sided game conditions. The research included 24 official matches played by an elite team (ET): 12 during the first half of the competitive season, representing the initial assessment, and 12 during the second half, representing the final assessment. Between the two evaluation stages, a specific training programme was implemented to develop execution speed, optimise offensive transitions and improve ball possession, passing accuracy, and finishing ability. Performance was assessed using the Game Speed Index (GSI%) and the Tactical Efficiency Index (TEI%), calculated through video analysis. The GSI increased from 57.06% to 77.28%, while the TEI rose from 51.11% to 75.86%. These findings indicate a direct relationship between an increased game tempo, improved tactical efficiency and the effectiveness of finishing actions.