Erv Leimer began his 32-year coaching career at Bismark High School in 1942. He led the Indians to the Missouri Championship with a total enrollment of only 84 students when the tournament consisted of only one class.

After a year at Brentwood High School, Leimer initiated the basketball program at Lutheran Central and had a five-year winning record of 97-52. He spent three years at John Burroughs High School before beginning the basketball program at Priory in St. Louis. In 1958 Leimer carried the game of basketball to Parkway Central where he guided his team to a 16-year record of 241-187 and a career coaching record of 467-286.