This study focuses on the relationship between sport volunteerism and social capital, defined here as a resource that stems from participation in certain social networks. A position generator and a resources generator were used to measure the social capital of respondents. Results from this pilot study survey, exploring several aspects of volunteerism in sport in two Canadian communities (one in Québec, the other in Ontario), show a strong relationship between volunteerism in sport and social capital but do not allow a precise measure of the direction of this relationship. Results also show stronger relationships between sport volunteerism and social capital when we control for gender, language, and age.