Career
He also designs his own boxing attire. Corley began boxing professionally on May 17, 1996, knocking out Aaron Smith in the first round. He would not lose a match until 1999, against Daniel Lujan.
Inactive period and return
He returned to the ring on January 4, 2003.
In 2006 he fought Junior Witter for the vacant WBC light welterweight championship, losing a wide decision in a very tactical bout. Later career
After many consecutive losses Demarcus Corley took on Damian Fuller in 2010 and improved his record to 37-13-1 (21 KO"s) with a 4th round TKO. On August 28, 2010 he lost to Marcos Maidana by unanimous decision in a fight in which was disputed, for the WBA light welterweight title.
On November 14, 2010 he lost to Serhiy Fedchenko by unanimous decision in a fight in which was also disputed, for the vacant WBO European light welterweight title. He then earned a TKO victory over Paul McCloskey on May 5, 2012.
On September 27, 2013 Demarcus Corley lost against Selçuk Aydin by corner stoppage at the end of round 4.