Artículo de publicación ISIThe aims of the study were to determine the change in countermovement jump (CMJ) after three friendly matches played on consecutive days, and to evaluate if there is a significant correlation between the changes observed in CMJ height with respect to the minutes played and the rate of perceived exertion (RPE) values. The CMJ height of 22 young male soccer players (age: 16.6±0.8 years) was determined in 5 occasions: pre-trip, pre-game 1, pre-game 2, pre-game 3, and post-trip. The results showed a reduction in jump height when compared to the pre-trip (P<0,001; effect size = 1.47), while the change in jump height was not significantly correlated with the minutes played r=-0.02; P=0.464) nor with the RPE values (r=0.15; P=0.249). The succession of football matches promotes a decrease in jump height that is not related to the minutes played nor to the RPE values.