​Dexter played college basketball at Clinton Junior College where he was a two-time Academic and Basketball All American. Dexter continued his college career at Hampton University where he broke every 3 point shooting record in the history of the University. He continues to hold the record for most 3 point shots made in a game. He continued his basketball career overseas with Christian basketball teams including Athletes in Action, Spirit Express and Sports Ambassadors to several countries including Taiwan, China, Romania and Argentina. He traveled professionally with the Harlem Legends where he was named one of the "world's best basketball handlers".

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Dexter coached the Boys Basketball Team at Croatan High School from 2009-2012. His last year coaching, the team comprised a 24-3 record. Dexter was named NCHSAA District 2 "Coach of the Year".