Peyton Theune grew up playing baseball in Phoenix, AZ and later graduated from Glenwood City High School. A lifelong student of the game, he went on to become a key player for the Spring Valley Hawks (WBL Division A) before turning his passion toward coaching.

Known for his focus on fundamentals, pitching development, and building strong team culture, Coach Theune works with athletes from age 11 through high school. His coaching style blends discipline, respect, and hard work with an uplifting, fun approach that helps athletes grow in both skill and confidence.

In addition to coaching at ISA, he serves as a coach for the Glenwood City JV baseball team and remains an active mentor in the broader baseball community.