Claremont-Mudd-Scripps Colleges

Quinn Heiner is entering his fifth season with Claremont-Mudd-Scripps baseball in 2025-26, earning associate head coach status in 2025, after adding recruiting coordinator to his title in 2024. He has already been a part of both the winningest season (35-15 in 2025), and the winningest SCIAC season (18-6 in 2023) in program history, and helped guide the Stags to their first-ever NCAA regional title in 2025.

Prior to joining the CMS staff, Heiner served for two years at Schreiner University, where he was an assistant coach with the varsity and the head coach of the junior varsity team. He worked specifically with the catchers and infielders at Schreiner, while also serving as a hitting instructor.

Heiner also has previous coaching experience as a graduate assistant at Holy Names University in Oakland. He played collegiately at Benedictine University in Lisle, Illinois as a catcher, and went on after graduation to compete professionally in Germany's Baseball Bundesliga with the Berlin Flamingos, while serving as a player/coach. In addition, he was the co-head coach of the Orange County Waves of the Pacific Coast Collegiate League in 2016, and was the interim varsity head coach at Laguna Hills High School in 2016, before assuming assistant coaching duties in 2017.  

Heiner earned his master's degree in business management with a focus in leadership at Holy Names, where he was awarded Graduate Assistant of the Year in 2020. He also earned his bachelor's degree from Benedictine in exercise and sports studies, while earning Scholar-Athlete distinction from the Northern Athletics Collegiate Conference.