The 6-foot-6, 190-pound senior guard led the Knights to a 13-2 record and the Class 4A semifinals this past season. McMahon averaged 27.3 points, 10.5 rebounds, 4.1 assists, 3.2 steals and 2.5 blocks per game. A two-time Class 4A Player of the Year, he is also a three-time First Team All-State honoree.
McMahon has maintained a 3.25 in the classroom. He has signed a National Letter of Intent to play basketball on scholarship at Montana State University this fall.
McMahon has volunteered locally on behalf of the Lighthouse Christian Fellowship.