Overall graduation rates improved among players at schools in this year's men's NCAA basketball tournament, and African-American players in particular did better, according to a study released Monday.

The annual report by the University of Central Florida's Institute for Diversity and Ethics in Sport (TIDES) shows African-American players' graduation success rate increased from 59 percent in 2012 to 65 percent this year, while white players' rates increased from 88 percent to 90 percent.

The overall graduation rates for programs in the tournament increased from 67 percent in 2012 to 70 percent.