College and amateur
Gilkerson was a standout defender during his college career at Winthrop University. He was named to the All-Big South first team in his junior and senior years. In 2006, he was named to the NSCAA All-South Atlantic Region Team.
In 2007 Gilkerson started in all of the Eagles’ 18 regular-season games, collecting one goal and two assists while leading a defense that conceded only 13 goals all season.
Gilkerson, who has also played for the Virginia Beach Submariners and Hampton Roads Piranhas (Premier Development League), helped guide a Winthrop defense that earned a 0.73 goals-against average in 2006, good for 16th in the nation. Professional
Following his senior season he was drafted by Red Bulletin New York with the 35th pick in the 2008 Master of Library Science Supplemental Draft.
After spending part of 2008 out on loan at Richmond Kickers of the USL Second Division, Gilkerson made his full professional debut for the Red Bulls on 1 July 2008, in a United States Open Cup third round game against Crystal Palace Baltimore. In January 2009, he signed with the Carolina RailHawks in the USL First Division and stayed with the club through the 2010 season.
Gilkerson signed with National Security Council Minnesota Stars of the North American Soccer League on March 15, 2011.
He was released by the club on November 29, 2011.