Isidro Ranoni Prieto has three losses against three opponents on his boxing record. For a list of Prieto's best fights, refer to "Best fights of Isidro Ranoni Prieto".
On August 31, 2018 Isidro Ranoni Prieto faced off against Cesar Hernan Reynoso in a heavyweight bout at age 32. He was coming in with a record of 27-3-3 (22), and Reynoso was 32 years old and with a record of 14-11-4 (7). Prieto lost the fight via 12-round split decision.
On December 23, 2016 Isidro Ranoni Prieto faced off against Artur Beterbiev in a heavyweight bout at age 30. He was coming in with a record of 26-2-3 (22), and Beterbiev was 31 years old and with a record of 10-0 (10). Prieto lost the fight via 1st-round TKO.
On August 15, 2015 Isidro Ranoni Prieto faced off against Eleider Alvarez in a heavyweight bout at age 29. He was coming in with a record of 24-1-3 (20), and Alvarez was 31 years old and with a record of 17-0 (10). Prieto lost the fight via 12-round unanimous decision.
