Isaiah Castilleja enters his seventh year as strength and conditioning coach at MSU Denver in 2020-21.
Prior to serving as the school's strength and conditioning coach, he was the trainer for the women's basketball team.
Previously Castilleja worked at Colorado for one year, helping the Buffaloes' football, cross country and track & field teams, as well as the Ralphie handlers, Chip, cheer, dance and Express teams. During his time there, the cross country team won a national championship.
He also served as an assistant strength and conditioning coach at Colorado School of Mines in 2011-12, helping the football, volleyball and men's soccer teams.
In 2011, Castilleja was a strength and conditioning coach with Steadman Hawkins, assisting with Denver Broncos players. He also assisted with other NFL, NHL, UFC and MLB athletes as well as Olympians Missy Franklin and Kara Lynn Joyce.
Castilleja holds several certifications, including National Strength and Conditioning Association-Certified Strength and Conditioning Specialist. He also has a Sports Performance Coach certification from United States of America Weightlifting.
Castilleja graduated from MSU Denver in 2011 with his bachelor's degree in human performance and sport (exercise science) and has his master's degree from A.T. Still University in kinesiology (sports conditioning). He and his wife Renee live in Highlands Ranch with their daughter.