Bamesberger garnered a combined 13 varsity letters in track (four), baseball (three), basketball (three) and football (three). A two-time baseball MVP for the Islanders, Bamesberger was also all-conference first team honors in football as a senior and all-conference second team in basketball in 2011.
Bamesberger pitched for Grand Island Home Federal during the summers, recording 77 strikeouts in only 62 innings pitched over the summer, hitting .358 with 15 doubles in 2011. The following summer, Bamesberger led Grand Island Home Federal to a 34-20 record, highlighted by a complete game shutout win over South Sioux City Cownie Church Post 307 on July 23. Bamesberger recorded 19 strikeouts in the three-hit victory.