Sports events are classified based on audience engagement into categories like spectator sports and participatory events. Spectator sports, such as football or basketball, attract large audiences and often rely on media coverage for visibility. In contrast, participatory events encourage audience involvement, such as marathons or fun runs, where the public takes part actively. The level of engagement also influences event planning, marketing strategies, and overall success. Understanding audience dynamics is crucial for organizers to enhance experiences and foster community support.