Born and raised in Elk Grove Village, Patrick graduated from Saint Viator High School in Arlington Heights. In high school, he was a three-year varsity starter at the goalie position, a two-time All-Conference selection, an All-State selection, and part of Team Illinois. Gaeger counted his collegiate career at Adrian College, where he won three conference championships and made three national tournament appearances during his stint in goal.

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Patrick is currently the Head Coach for his alma mater,  Saint Viator High School. He previously held the positions of Head Coach at St. Laurence High School and Associate Head Coach of the men’s lacrosse team at Robert Morris University, where he helped lead the team from a sub .500 record to back-to-back conference titles. Gaeger currently works for Saint Viator High School as the Athletic Department Assistant.