Here is a list of Marrero's best fights. For a list of Marrero's losses, refer to "Claudio Marrero Losses".
On June 29, 2019 Claudio Marrero faced off against Eduardo Ramirez at age 30. He was coming in with a record of 24-3 (17), and Ramirez was 26 years old and with a record of 22-1-3 (9). Marrero won the fight via 12-round unanimous decision.
On April 29, 2017 Claudio Marrero fought Carlos Zambrano in a featherweight world-title fight for Zambrano's WBA title. Marrero was 28 years old and with a record of 22-1 (16). Marrero stopped Carlos Zambrano via 1st-round KO and is crowned the new featherweight world champion.
