Klingelhoets, who captained the men's tennis team in 1971-72, has been at the helm of the program since 1982. He coached 23 first-team All-Big Ten picks during his tenure, most recently Danny Westerman, who was a first-team All-Big Ten pick in 2000, 2001 and 2002, and is currently the Badgers' assistant coach.
"I certainly enjoyed my time at Wisconsin," Klingelhoets said. "I have had the opportunity to work with many fine young men. It's been fun. Now, I'm just going to relax, enjoy the summer and see what the future brings."
Klingelhoets, who has also served as a tennis professional at the Janesville Athletic Club and Cherokee Country Club, has competed at the amateur level, winning all four state men's open division tournaments in 2000.
Klingelhoets finished his coaching tenure with a 291-286 overall record — including three third-place finishes in the Big Ten — but the Badgers have finished no higher than sixth in the conference since 1995.
The UW Athletics Department announced that it will conduct a national search for Klingelhoets' replacement.
At the Big Ten Tournament, the tenth-seeded Badgers fell to seventh-seeded Minnesota 4-1, with the lone win coming from freshman Jeremy Sonkin at the No. 2 singles spot. Minnesota grabbed the doubles point and won at the Nos. 1, 3 and 5 spots to secure the win. In Big Ten Tournament play, once a team has four points, all matches that have not been completed are abandoned.
Wisconsin finished its season 8-14 overall and 2-8 in conference play.