Besl starred on the diamond for Concord from 2003-06. In 130 games played, Besl hit .434 with 160 runs scored, 26 home runs, 158 RBI and a .729 slugging percentage. As a junior, Besl led the nation in batting average (.500) and runs scored per game (1.51). He racked up a variety of postseason awards for his performance as a Mountain Lion. Besl was a three-time All-WVIAC selection, the conference's Hitter of the Year and Player of the Year in 2005 while also earning All-America honors as a junior and senior by both the NCAA and the National Collegiate Baseball Association.