On October 6, 2012, a 37-year-old Iván Calderón (35-2-1, 6 KOs) got a shot at the strawweight WBO title held by Moisés Fuentes.
Calderón came in to the fight on a 1-fight win streak with a 15% KO rate, and was fighting after a gap of 11 months and 7 days.
Iván Calderón was defending his strawweight titles and, fighting for the strawweight WBO titles against Moisés Fuentes and lost via TKO in the 5th round, and adds a loss to his record at 35-3-1.
On April 2, 2011, Iván Calderón and Giovani Segura met again in an immediate rematch.
Calderón came in to the fight on a 1-fight losing streak with a 16% KO rate, and was fighting after a gap of 7 months and 5 days.
Iván Calderón was defending his light-flyweight titles and, fighting for the light-flyweight WBO and The Ring titles against Giovani Segura and lost via KO in the 3rd round, and adds a loss to his record at 34-2-1.
On August 28, 2010, the 35-year-old WBO and The Ring light-flyweight champion, Iván Calderón (34-0-1, 6 KOs), and WBA (Unified) light-flyweight champion Giovani Segura met in a title-unification fight.
Calderón came in to the fight on a 2-fight win streak with a 17% KO rate, and was fighting after a gap of 2 months and 16 days.
Iván Calderón was defending his light-flyweight WBO and The Ring titles and, fighting for the light-flyweight WBA (Unified) titles against Giovani Segura and lost via KO in the 8th round, and adds a loss to his record at 34-1-1.