This study aims to determine the effect of leg muscle power training with leaps on athlete's speed during the COVID-19 pandemic. The method in this study was a true experiment with pretest-posttest control group design. The total participants were 38 male athletes with an age range of 15-18 years (M = 17.3; SD: 1.26). Data analysis in this study is descriptive analysis and hypothesis testing. The results of the study are: 1) For the control group, the statement H0 "There is no effect of leg muscle power training with leaps on athlete's speed during the COVID-19 pandemic", is accepted. Then, there was a decrease in the mean of 0.23 or 1.78%; 2) For the experimental group, H1 statement "There is effect of leg muscle power training with leaps on athlete's speed during the COVID-19 pandemic", is accepted. Then supported by an increase in the mean of 0.44 or 3.42%. The conclusion is that there is an effect of leg muscle power training with leaps on athlete's speed during the COVID-19 pandemic. These findings may have implications, namely being a reference for trainers in developing training programs to increase leg muscle power with leaps that seem to be of significant effectiveness. For further researchers, it is hoped that they can modify other types of training and conduct research with a wider sample and population as well as add different variables so that the treatment given is to influence speed through treatment of leg muscle power
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