Post-college, Otopalik fulfilled his military duty by serving in the Army during WWI. He served under General John Pershing[6] and rose to the rank of First Sergeant before the end of the War in 1918.[7]
Wrestling
Otopalik was recruited to become the assistant wrestling coach at Iowa State under head coach Charles Mayser in 1920. In 1923 Mayser unexpectedly resigned and Hugo volunteered to take over on a temporary basis.[8] He remained the head coach for 29 years until his death in 1953.[9]
Otopalik took over an Iowa State program that was in its infancy and was able to establish the groundwork of a powerhouse. He led the Cyclones to their first ever NCAA team title in any sport, in 1933.[10] Additionally he coached seven individual NCAA champions: Arthur Holding, Hugh Linn, Richard Cole, Robert Hess (twice), Merrill Frevert and George Martin.[11] He also coached the team to five conference titles in 1929, 1933, 1937, 1941 and 1947.[12][13][14]
Otopalik assisted in organizing the first NCAA Wrestling Championship. It was hosted by the Cyclones in Ames, Iowa.[21][22]
Hugo served as the first secretary of the National Wrestling Coaches Association from 1932 to 1936, and served in leadership positions developing AAU wrestling in the United States.[23]
Golf
When the Big Six began sponsoring men's golf as an official sport, Iowa State needed a coach. Golf was not as elevated as football or basketball so the athletic administration didn't see a need to "hire a real coach". Otopalik was free because the golf season didn't overlap with the wrestling season, so he added head golf coach to his job description.[24]
Otopalik helmed the golf program from 1931 to 1953, except the 1947 season, which Jack McGuire coached.[25] His team's had Big Six Championships in 1940 and 1947 as well as a Big Seven Title in 1953. They also placed in the NCAA tournament in 1939, 1940, 1947, 1949, 1952, and 1953 with 4th, 8th, 34th, 12th, 22nd, and 19th-place finishes respectively.[26][27]
In addition to his coaching duties at Iowa State, Otopalik was also instrumental in creating the first NCAA Golf Championship. As a result, he was the Tournament Director of the first NCAA Championship held at the Wakonda Club in Des Moines, IA.[28]