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 an 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 an 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 an loss to his record at 34-1-1.