Here is a list of Monroe Jr.'s best fights. For a list of Monroe Jr.'s losses, refer to "Willie Monroe Jr. Losses".
On September 17, 2016 Willie Monroe Jr. faced off against Gabriel Rosado in a middleweight bout at age 29. He was coming in with a record of 21-2 (6), and Rosado was 30 years old and with a record of 23-9 (13). Monroe Jr. won the fight via 12-round unanimous decision.
On May 23, 2014 Willie Monroe Jr. faced off against Brandon Adams in a middleweight bout at age 27. He was coming in with a record of 18-1 (6), and Adams was 24 years old and with a record of 14-0 (9). Monroe Jr. won the fight via 10-round unanimous decision.