Carmelo Marrero has six losses against six opponents on his MMA record. For a list of Marrero's best fights, refer to "Best fights of Carmelo Marrero".
On October 19, 2012 Carmelo Marrero faced off against Lew Polley in a heavyweight bout at age 31. He was coming in with a record of 14-6 (8). Marrero lost the fight via 3-round unanimous decision.
On January 29, 2011 Carmelo Marrero faced off against Mark Holata in a heavyweight bout at age 30. He was coming in with a record of 13-5 (8), and Holata was 28 years old and with a record of 9-2 (6). Marrero lost the fight via 3-round unanimous decision.
On September 5, 2009 Carmelo Marrero faced off against Antwain Britt in a light-heavyweight bout at age 28. He was coming in with a record of 10-4 (6), and Britt was 31 years old and with a record of 8-2 (8). Marrero lost the fight via 3-round unanimous decision.
On April 1, 2009 Carmelo Marrero faced off against Ryan Bader in a light-heavyweight bout at age 28. He was coming in with a record of 10-3 (6), and Bader was 25 years old and with a record of 8-0 (7). Marrero lost the fight via 3-round unanimous decision.
On May 26, 2007 Carmelo Marrero faced off against Wilson Gouveia in a light-heavyweight bout at age 26. He was coming in with a record of 6-2 (3), and Gouveia was 28 years old and with a record of 8-4 (7). Marrero lost the fight via 1st-round submission.
On December 30, 2006 Carmelo Marrero faced off against Gabriel Gonzaga in a heavyweight bout at age 25. He was coming in with a record of 6-1 (3), and Gonzaga was 27 years old and with a record of 6-1 (6). Marrero lost the fight via 1st-round submission.
