Background: Men’s Olympic boxing follows a regulatory temporal structure, but previous studies have shown that this structure varies during competitions. However, these investigations have not thoroughly analyzed the differences in bout development according to weight category. Additionally, most studies have focused on a limited number of categories, leaving gaps in the temporal analysis of various categories. Aim: To determine the temporal structure in the featherweight, lightweight, welterweight, light heavyweight, and heavyweight categories of men’s Olympic boxing, in order to establish models that can help adjust training to meet competitive demands. Methods: An observational approach was used, analyzing 73 bouts involving 80 boxers who competed in the 2020 Tokyo Olympic Games. Results: Most bouts ended after the completion of the full regulation time across all categories. The most common actions were short punching sequences (two to five punches), occurring mainly in the center of the ring. Differences between weight categories were minimal, with the welterweight category showing the most variability. Conclusion: This study presents temporal models that will help coaches and boxers adjust their training with greater precision, improving the efficiency of training sessions according to competitive objectives.