Here is a list of Calderón's best fights. For a list of Calderón's losses, refer to "Iván Calderón Losses".
On July 31, 2004 Iván Calderón met Roberto Carlos Leyva in a strawweight (WBO) world-title defense fight. Calderón was 29 years old and with a record of 20-0 (4), and Leyva was 24 years old and with a record of 23-3-1 (20). Calderón won the fight via 12-round unanimous decision and successfully defended his title.
