Objective The aim of the present study was to determine the change in velocity in young soccer players during the competitive period and its relation to the training content. Method Participants were 17 soccer players (16.3 ± 0.4 years old, 70.2 ± 6.1 kg, 176 ± 6.4 cm). The team was analyzed for 17 weeks during competitive period. Evaluations were made of the velocity at 10 m (V10 m) and 30 m (V30 m) in three distinct moments (M1= 1st, M2= 10th and M3= 17th week). Results The main results show a significant decrease (p < 0.05) of M1 (7.25 ± 0.2 m/s) to M3 (7.05 ± 0.2 m/s) for variable V30 m and significant increase in V10 m. 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