Radunz played college football at North Dakota State University, where he was a standout player for the Bison. During his time at NDSU, he was a key contributor to the team’s success, helping them win three consecutive FCS national championships in 2018, 2019, and 2020. Radunz received several awards and accolades for his performances on the field, including being named to the All-MVFC First Team and the FCS All-American First Team.