[3] Rupcich gained a starting role at left tackle as a freshman in 2017 and went on to play every snap for the rest of his collegiate career.
[4] He started all 11 games in 2017 and did the same in 2018 while being named first-team All-Heart of America Athletic Conference (HAAC) North Division.
[6] In 2019, he started all 11 games at left tackle and was chosen first-team All-HAAC North Division for the second time in a row, being the first repeat player to earn the honors at Culver–Stockton since 2014 while helping Culver–Stockton have its first winning season since 2001.
[2][10] He ended his collegiate career having appeared in and started all 48 games in five seasons while missing no snaps, being the first player in NAIA history to be named first-team All-American at the same position three times.
[3][4] He graduated in December 2021 with a degree in physical education and health and was also invited to play at the College Gridiron Showcase and the Hula Bowl.
[15][16][17] He did not appear in any games in his first season, spending the entire year on the practice squad as the Titans finished with a record of 7–10.