Here is a list of Sims Jr.'s best fights. For a list of Sims Jr.'s losses, refer to "Kenneth Sims Jr. Losses".
On May 22, 2021 Kenneth Sims Jr. faced off against Elvis Rodriguez in a super-lightweight bout at age 27. He was coming in with a record of 16-2-1 (5), and Rodriguez was 25 years old and with a record of 11-0-1 (10). Sims Jr. won the fight via 8-round majority decision.