The Collegiate Leadership Competition (CLC) is a fast-growing tool for post-secondary student leadership development. There, teams practice with a coach for several months, then compete against teams from other institutions to win competitions based on achieving outcomes and demonstrating effective leadership practices (e.g., authentic collaboration, positive conflict management techniques). In this study, 135 students participated in at least one wave of data collection. Initial results suggested that leadership capacity among participants showed a steady increase from initial pre-test through their competition date to a post-test measured months later. Scores among participants who identified as a man or woman did not statistically differ. These findings, though initial, may indicate that placing students in competitive environments can serve as an important tool to support their leadership development.