Professional Golfers

6/3/2025 2:45:31 PM

Tom Sipula, General Manager & Director of Golf

Tom Sipula is the General Manager and Director of Golf at St. Clair Country Club in Belleville, Illinois. A graduate of O'Fallon Township High School (Class of 1988) and a former collegiate standout at Illinois State University, Sipula qualified for two U.S. Opens, making the cut in 1998 and playing alongside legends like Jack Nicklaus. He’s a multiple-time PGA champion, including national stroke and match play titles, and was named Illinois PGA Player of the Year in 1999. At St. Clair, he’s known for his leadership, teaching, and dedication to growing the game at all levels. (Click here for full bio)

6/3/2025 1:55:14 PM

Dennis Biedenstein, Head Golf Professional

Dennis Biedenstein is the Head Golf Professional at St. Clair Country Club in Belleville, Illinois. Appointed in 2023, he oversees the club’s golf operations, including instruction, member services, and tournament coordination. Known for his dedication to player development and enhancing the member experience, Biedenstein brings a strong background in teaching and club management to one of the region’s premier golf facilities.

6/2/2025 2:45:08 PM

Claire Rendleman, Assistant Golf Professional

Claire Rendleman is a collegiate golfer from Millikin University, known for her consistent performance and leadership on the course. During the 2022–23 season, she posted a scoring average of 86.79 and won the IC Fall Preview with a low round of 81. She also recorded one of the program’s top 10 lowest 54-hole scores at the 2021–22 CCIW Championships, highlighting her impact on Millikin’s women’s golf team.

6/1/2025 2:40:58 PM

Colin Waltsgott, Assistant Golf Professional

Colin Waltsgott is from Mascoutah, Illinois and played for the Mascoutah High School golf team. He notably claimed the individual title at the East Alton–Wood River Hickory Stick Invitational, shooting an impressive even‑par 72 to lead the field. He went on to compete for two years at Lewis & Clark CC before taking on a clubhouse role at Spencer T. Olin prior to joining the St. Clair CC staff.