In his first year at Michigan Agricultural, 1921, Hultman played
left guard for the
freshman football team and was named one of the school's "All-Freshman" players. He also played for the freshman basketball squad and one year later became a
varsity letterman and starter at
forward for the team. In the 1922 football season, Hultman became a starter at guard before later being switched to
end; he also served as the team's
punter. Hultman returned to the basketball team for the 1922–23 season, while in the 1923 football season he played every game while shifting from end to guard to
tackle. Following the 1923 season, Hultman was elected the team
captain for the football team in 1924. He helped the Aggies compile a record of 5–3; each of their wins were by several scores, including some blowouts such as a 59–0 win over
North-Western College, while each of their losses were one-score games, including a close 7–0 loss to
rival Michigan. Despite the team's loss in their game against Michigan, the
Associated Press called Hultman the "hero of the game" and noted that he "added absolute security to his side of the line and his leadership accounted largely for the fighting spirit of the green clad warriors". Hultman played a final season with the basketball team in the 1924–25 season and scored points in every game. An engineering student, he graduated in 1925. The
Lansing State Journal summed up his football career as "one of the most versatile linemen ever turned out at [Michigan Agricultural]". ==Professional career==