The 2010 NCAA Men's Division I Basketball Tournament involved 65 schools playing in a single-elimination tournament to determine the national champion of men's NCAA Division I college basketball as a culmination of the 2009–10 basketball season. It began on March 16, 2010 and concluded with Duke defeating Butler 61–59 in the championship game on April 5 at Lucas Oil Stadium in Indianapolis, Indiana, to become champion. It was the first Final Four at Lucas Oil Stadium; the RCA Dome and Market Square Arena hosted past Final Fours when the event was held in Indianapolis.