In this paper we assess the extent to which social cap- ital affects the student activity-drinking relationship. Hierarchical OLS regressions (n=167) showed that bridging social capital closed the gap in alcohol consumption between students who spent little, versus a lot of, time participating in sports/fitness activities by reducing how frequently the former individuals drank heavily. High bridging capital also decreased heavy drinking among students who were not employed or worked few hours per week. Similar patterns were observed when the total amount of time students spent in non-Greek-related activities was considered in relation to levels of social capital and alcohol consumption. These findings are significant in that they suggest that programs that facilitate the diversification of students' social networks should reduce their levels of drinking.