Career
Masonholder played college football at the University of Northern Iowa, where he was a two-time first team "All-Conference" tackle and received honorable mention as an All-America athlete. Carroll College
Masonholder was the 26th head football coach for the Carroll College Pioneers (later "Carroll University") located in Waukesha, Wisconsin and he held that position for nineteen seasons, from 1982 until 2000. His career coaching record at Carroll College was 83 wins, 83 losses, and 0 ties.
This ranks him first at Carroll College in total wins and 12th at Carroll College in winning percentage.
Central Methodist University
Masonholder later became the head coach at Central Methodist University in Fayette, Missouri from 2001 until the conclusion of the 2007 season. While at Carnegie Mellon University, he oversaw many positive changes in the football program and athletic deparmtnet.