Bill Waliewski was recently elected the clubs 35th president. He succeeds Herb Forkenbrock who served over ten years in that capacity. Bill has an extensive background in professional baseball. He will begin his 10th season with the Windy City ThunderBolts in 2024 and his 12th year overall in professional baseball. He was named Assistant General Manager on May 3, 2019. . He was named Senior Sales Executive when he joined the ThunderBolts in 2014 serving in that role through the 2018 season. 

Bill left a 23-year career in commercial real estate in the fall of 2010 to become President of the Joliet Slammers in their inaugural season. Bill was the leader of a staff that had the daunting task of creating a brand new team from the ground up. That 2011 season was a landmark year. The Slammers would win the Frontier League championship in that first season. Waliewski was named Frontier League co-Executive of the Year as well as Minor League Executive of the Year by the Pitch & Hit Club of Chicago. Bill would serve as President of the Slammers through the 2012 season and his leadership laid the groundwork for what the franchise is today.

Bill graduated high school from Hinsdale Central High School in 1983. He earned his degree in Sociology at Texas Lutheran University in 1988. Bill and his wife Jeni reside in Western Springs along with their daughter Madison and son Ray.

Other officers of the club include vice-president Ken Miller, treasurer Bill Motluck, and secretary Al Budding.