The aim of the master thesis was to determine the differences between winning and defeated male teams and to determine competitive performance indicators that affect the final result of the male's handball tournament of the Olympic games in Tokyo 2020. The entity sample of this research represents 78 opponents from 38 matches played in the group and elimination stages. As part of the research, 18 variables were observed. 16 variables belong to the attacking phase: successful and unsuccessful shot from the six-meter line, successful and unsuccessful shot from the wing, successful and unsuccessful shot from the nine-meter line, successful and unsuccessful seven-meter throw, successful and unsuccessful fastbreak, successful and unsuccessful shot from the passage, successful and unsuccessful shot at an empty goal, assists and turnovers, while 2 variables belong to the defense phase: won and blocked balls. The Mann-Whitney U test was used in data processing with an error of less than 0.05. A statistically significant difference was determined for 6 variables: assists - ASISTEN (p=0.01), unsuccessful shots from the nine-meter line - ŠUT9MNE (p=0.02), unsuccessful seven-meter throw - ŠUT7MNE (p=0.02), balls won - OSVOLOP (p=0.03) and blocked balls - BLOKLOP (p-0.04), unsuccessful shots from the passage - SHUTPRNE (p=0.05). These data indicate that the winning teams are characterized by a high-quality shot selection, which is manifested by a lower number of missed shots from passage, seven meter and the six-meter line. Defeated teams achieved a lower number of assists than winning teams, which points to poorer technical and tactical preparation. The defense phase proved to be an important segment of the handball game, and the observed variables from the defense phase showed a statistically significant difference between the winning and defeated teams.