The following season, Tillotson was again named to the All-State team as he led Ludington to an 18–4 record and an appearance in the state semi-finals.

He was the captain, most valuable player, and leading scorer on the 1957–58 Michigan Wolverines men's basketball team.

[10] He was injured during the pre-season training camp for Syracuse and spent the 1958–59 season playing for the Milan Simmenthal in the Italian Amateur League.

[13] Tillotson received the 1958 Chicago Tribune Big Ten Michigan Most Valuable Player Award.

[6] After retiring from basketball, Tillotson worked for nearly 40 years for Ford Motor Company, Paine Webber, Goldman Sachs and General Electric.