He served as the head baseball coach at California Lutheran University from 1994, when he replaced Rich Hill, to 2023.
During his tenure, he guided the Cal Lutheran Kingsmen baseball program to twelve conference championships, thirteen regional appearances, four World Series appearances and as of 2017, one NCAA Division III national championship.
[1][2] He is the winningest coach in CLU history and received his 700th win during his 25th season in 2018.
[3][4] Slimak then played two years for Dave Gorrie at UC Santa Barbara, where he earned his bachelor's degree.
[3] After serving as a top assistant under head coach Rich Hill at Cal Lutheran, Slimak was named head coach in July 1993 after Hill was hired at San Francisco.