The Montana Youth Risk Behavior Survey (YRBS) is administered by the Montana Office of Public Instruction every two years to students in grades 7 through 12. The purpose of the survey is to help monitor the prevalence of behaviors that not only influence youth health, but also put youth at risk for the most significant health and social problems that can occur during adolescence. While all schools in Montana can participate in the survey on a volunteer basis, approximately 50 high schools are randomly selected to be included to provide the Montana statewide data to be used in other national YRBS reports. The 2011 YRBS was conducted in February 2011. Schools administering the survey were provided with detailed written instructions on conducting a random survey in their schools. Data used in this report from the 2011 Youth Risk Behavior Survey are based on a random survey of Montana high school students. According to the 2011 YRBS, 63% of Montana high school students reported having played on a sports team during the past 12 months. Sixty-five percent of males and 62% of females played on a sports team. Of those who had played on a sports team, 69% were ninth graders, 66% were tenth graders, 61% were eleventh graders and 58% were twelfth grade students.