The purpose of the study was to examine the acute effects of open and closed skill warmings on change of direction and reactive speed performance. 113 high school students participated in the study voluntarily. The students were divided into three groups as general warming (GW), open skill warming (OSW) and closed skill warming (CSW). Reactive speed and change of direction test was performed after the general warming (GW), open skill warming (OSW), and closed skill warming (CSW) protocols were applied in our study. In this study, general warming protocol was designed as control application and other warming protocols were designed as experimental application. In terms of the change of direction performance, with general warming the difference between OSW (p> 0.01) and CSW (p> 0.01) was found significant. However, the difference between closed skill warming and open skill warming was not significant. The difference between general warming and open skill warming (p <0.01) was found to be significant in terms of the reactive speed. However, the difference between closed skill warming (p> 0,097) and open skill warming (p> 0.0212) was not significant. In our study, in which we examined the acute effects of on and off skill warmings on different speeds and reactive speeds of different warm-up protocols, it is thought that if warming includes open and closed skills, both change of direction performance and reactive speed performance can be increased.