[3] Simonich led the Carroll Fighting Saints football team to consecutive Montana Collegiate Conference (MCC) titles, in 1940 and 1941.
[5] In 1947, he left Montana to become the athletic director head football coach at Trinity High School in Sioux City, Iowa.
[6] Three years later, in 1950, he took on the same role at the newly-opened Bishop Heelan Catholic High School, also in Sioux City.
[7] In 1955, Simonich was hired as athletic director, coach, and assistant professor at Montana Mines, succeeding Ralph Olsen.
[8][9] At Montana Mines, Simonich also coached basketball, baseball, track, wrestling, ice hockey, tennis, and golf and was director of intramural sports.