Reesman is a lengthy left-handed pitcher who joins the SwampDogs following a redshirt season with the Pitt Panthers. In high school, Peyton played for for Mifflin County High School in Lewistown, PA, where he was named to the 2015 Mid-Penn Commonwealth Second Team All-Star team as a junior. In 2016, Reesman went 8-0, pitching to a 0.85 ERA in 57.1 innings, while tallying 87 strikeouts. The Mifflin County Huskies captured the 2016 District 6 title with a 16-8 overall record and Peyton was named to the 2016 Mid-Penn Commonwealth First Team All-Star team. He also played basketball for Mifflin County and graduated as an honor student.