Answer
Randy Couture won the UFC Heavyweight Championship three times, making him one of the most successful fighters in the division's history. His first reign began in 1997 when he defeated Maurice Smith, and he successfully defended the title twice before losing it to Kevin Randleman in 2000. Couture regained the championship in 2002 by defeating Josh Barnett, and he defended it once before losing it to Brock Lesnar in 2008.