Bellarmine fields three baseball teams: freshman, junior varsity, and varsity.
The 2018 varsity baseball season exceeded most expectations with an extremely successful record, ranking, and overall performance. Prior to the West Catholic Athletic League (WCAL) season even starting, the Bells found themselves ranked among the top teams both nationally (as high as 7th) and the state (as high as 2nd). The team won the Boras Classic North for a second consecutive year, giving them another chance to win the defacto state championship against Southern section powerhouse, JSerra. The Bells triumphed to win the game at Santa Clara University, which heightened their pursuit of a Central Coast Section (CCS) championship. They made it to the section championship game but fell short, finishing second in the section. Although they did not win the final game of the year, the 2018 Bells had a tremendous year—a final record of 25-8 and a top-ten state ranking.