COVID-19 has led to quarantines, isolations, and social separations worldwide. Universities use distance education and blended learning especially for practical courses. The purpose of this study was to investigate the effectiveness of blended learning via Edmodo on students' performance and attitude when learning some fundamental boxing skills. Thirty-two students from 124 enrolled in a boxing sport course were randomly selected. A quasi-experimental design was used by creating a control group and an experimental group. A flipped classroom strategy was used to teach basic boxing skills to the experimental group via Edmodo. The control group was taught via teacher command style. Results of the post-measurements of overall skill performance score indicated that the experimental group outperformed the control group with a large effect size of ([eta][superscript 2] = 0.73). The Edmodo students also demonstrated positive attitudes. A blended learning program via Edmodo influences positively on learning boxing skills and motivates them to learn.