Career
He has held that position since prior to the start of the 2006 season. Under Hartleb, the Fighting Illini have appeared in two National Collegiate Athletic Association Tournaments. Hartleb played two seasons of junior college baseball at John A. Logan College before finishing his playing career with two seasons at Southern Illinois.
His coaching career began immediately after his playing career ended, as he served as a graduate assistant under Itch Jones at Southern Illinois from 1989–1990.
When Jones was offered the head coaching position at Illinois following the 1990 season, Hartleb went with him and served as an Illinois assistant from 1991–2005. Hartleb became the head coach at Illinois when Jones retired at the end of the 2005 season.
The Illini qualified for four Big Ten Tournaments in Hartleb"s first five seasons, finishing with an above-.500 record in each. There, the team went 2–2 and reached a regional final.
After missing the Big Ten Tournament in 2012, Illinois reached another National Collegiate Athletic Association Tournament in 2013.
Following the season, Hartleb signed a new, multi-year contract. Due to the death of his father, Hartleb spent some time away from the team during the 2014 season.
