Regular physical activity has been shown to decrease the risk of many chronic health problems (Haskell, Lee, Pate et al., 2007). Recent research has shown a steep decline in physical activity as children develop through adolescence and into young adulthood (Sallis, 1993; Stone, McKenzie, Welk, Booth, 1998). Many universities across the country have updated their campus recreation programs and facilities to promote physical activity and healthy living. Overall health and wellness is one of the many benefits offered from campus recreation services. To maximize physical activity outcomes, an assessment of motivations to participate in campus recreation services should be considered. The purpose of this study was to investigate motivational factors that are associated with students' participation in intramural sports and compare these motivations across different demographic groups. The theoretical basis for this study was the Self-Determination Theory (SDT) developed by Deci and Ryan (1985). Motivational factors were measured using a modified version of the Motives for Physical Activity Scale developed by Frederick and Ryan (1993). Data collection occurred during the spring 2005 semester at a university in the southeastern United States. Significant relationships were identified between gender groups. Recommendations for campus recreation professionals are also presented.