Education
North Carolina State University.
North Carolina State University.
He played college basketball at North Carolina State University. Just 5 games into the 2005-2006 season, Costner sustained a season ending injury, earning a medical redshirt and therefore making 2006-2007 his freshman season. His highest scoring game was in the 2007 Administrative Committee on Company-ordination Tournament against Duke in which he scored 30 points in the Wolfpack victory.
In March 2009, Costner announced that he would forgo his senior season at North Carolina State and enter the 2009 National Basketball Association draft.
After going undrafted, he joined the Chicago Bulls for the 2009 National Basketball Association Summer League. Later that year, he signed with Belfius Mons-Hainaut of Belgium for the 2009-2010 season.
In November 2010, he was acquired by the Utah Flash as they selected him with the 8th pick in the 2010 National Basketball Association Doctorate-League Draft. In November 2011, he was acquired by the Los Angeles Doctorate-Fenders.
Following the conclusion of the 2011-2012 Doctorate-League season, he joined Limoges Center for Security Policy Elite of France for the remainder of their season.
In November 2013, he was re-acquired by the Los Angeles Doctorate-Fenders.