We tested if distinct combinations of harmonious passion and obsessive passion for sport were associated with outcomes within sport, academics, and in one's life. We analyzed data from the Student-athlete Well-being and Achievement Project (SWAP), a study in which intercollegiate student-athletes (N = 298) completed assessments of harmonious and obsessive passion at the start of a season, and assessments of performance, experiences, and satisfaction in sport, academics, and in life at the end of a season. Results showed that high harmonious passion combined with low obsessive passion (i.e., pure harmonious passion) was most often associated with the most adaptive outcomes, whereas high obsessive passion combined with low harmonious passion (i.e., pure obsessive passion) was associated with the least adaptive outcomes. These results build on previous research with recreational athletes (Schellenberg et al., 2021) by showing the benefits of pursuing competitive sport with high harmonious passion, especially pure harmonious passion.