2004-07-31 Ivan Calderon w pts 12 Roberto Carlos Leyva, MGM Grand, Las Vegas, Nevada, USA - WBO
2004-07-31 Ivan Calderon w pts 12 Roberto Carlos Leyva, MGM Grand, Las Vegas, Nevada, USA - WBO. Referee: Robert Byrd. Scorecards: 116-112, 116-112, 116-112. Cut over the left eye within the first 40 seconds, Calderon (104½) had to battle hard to defend his title against a fired-up Leyva (105), a former IBF champion and a fellow southpaw. There was no doubt that Leyva’s body punching was effective in the early stages, but by the seventh Calderon, despite being the shorter man by far, was outboxing the Mexican and rarely looked back. Although Leyva continued to apply pressure during the latter period, especially when scoring with a heavy right hook in the tenth, the busy Calderon stuck to his boxing to win the points.