Objectives. This study compares the prevalence of health-related behaviors and mental health well-being in the Hong Kong general male population before and after the 2006 World Cup finals. Study design. Two anonymous, serial, comparable cross-sectional surveys. Methods. A total of 500 and 530 adult Chinese men, respectively, were interviewed in 2 telephone surveys before and after the finals. Results. Those interviewed after the World Cup were more likely to eat snacks more than 3 d/wk, to be binge drinkers, or to spend more than 2 h/d communicating with family members. They were less likely to have higher General Health Questionnaire or lower Short Form-36 Health Survey Vitality scores (odds ratio [OR] = 0.684 and 0.765), to perceive family-related or work-related stress (OR = 0.327 and 0.345), or to self-report being sick or have visited a doctor (OR = 0.645 and 0.722). All variables between watchers versus nonwatchers of World Cup games were significant or marginally significant. Conclusions. Public health education should be incorporated into global sport events.