RHP Jack Landwehr enters his second year in the Frontier League and first year with the Boomers after playing with the Normal Cornbelters during the 2018 season. Landwehr posted an 8-3 overall record with a 3.32 ERA for Normal in 2018. Landwehr was selected to the 2018 Frontier League All-Star game, as well a Runner-Up for Rookie of the Year last season. Landwehr is a Mount Prospect, IL native where he graduated from Illinois State University in May of 2017.