Kenneth Sims Jr. (22-3-1, 8) was born in Chicago, Illinois, USA on December 25, 1993. At the age of 20 years on March 7, 2014, he made his professional boxing debut against Cory Muldrew, winning the fight via 4-round unanimous decision.
Sims Jr.'s last fight was a 12-round majority decision loss to Oscar Duarte Jurado at age 31 on August 2, 2025. He is on a 1-fight losing streak.
Some of Kenneth Sims Jr.'s best fights have been against Elvis Rodriguez.
Sims Jr. has 3 losses on his boxing record.
| # | Date | Opponent | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|
26  | Aug 2, 2025 31 years, 7 months 22-3-1 (8) | 29 years, 6 months 29-2-1 (23) | SLT | 12 | MD | LOSS |
25 | Feb 15, 2025 31 years, 1 months 22-2-1 (8) | Kendo Castaneda | SLT | 10 | UD | WIN |
24 | Aug 10, 2024 30 years, 7 months 21-2-1 (8) | Jonathan Romero | SLT | 5 | RTD | WIN |
23  | May 13, 2023 29 years, 4 months 20-2-1 (7) | 32 years, 4 months 9-2 (8) | SLT | 12 | MD | WIN |
22 | Dec 17, 2022 28 years, 11 months 19-2-1 (7) | Rock Dodler Myrthil | SLT | 5 | TKO | WIN |
21 | Aug 21, 2022 28 years, 7 months 18-2-1 (6) | Cristian Ruben Mino | SLT | 5 | TKO | WIN |
20 | Dec 25, 2021 28 years 17-2-1 (5) | Keeshawn Williams | SLT | 8 | UD | WIN |
19  | May 22, 2021 27 years, 4 months 16-2-1 (5) | 25 years, 4 months 11-0-1 (10) | SLT | 8 | MD | WIN |
18 | Oct 31, 2020 26 years, 10 months 15-2-1 (5) | Jermaine Corley | SLT | 4 | UD | WIN |
17 | May 18, 2019 25 years, 4 months 14-2-1 (5) | Darryol Humphery | SLT | 1 | KO | WIN |
16 | Nov 16, 2018 24 years, 10 months 13-2-1 (4) | Samuel Teah | SLT | 8 | UD | LOSS |
15 | Oct 13, 2018 24 years, 9 months 13-1-1 (4) | Andrew Rodgers | SLT | 6 | UD | WIN |
14  | Jul 20, 2018 24 years, 6 months 12-1-1 (4) | 23 years, 6 months 11-0 (5) | SLT | 8 | SD | DRAW |
13 | Jul 14, 2017 23 years, 6 months 12-1 (4) | Rolando Chinea | 8 | MD | LOSS | |
12 | Apr 22, 2017 23 years, 3 months 12-0 (4) | Israel Villela | 3 | TKO | WIN | |
11 | Jan 20, 2017 23 years 11-0 (3) | Emanuel Robles | 8 | UD | WIN | |
10 | Nov 11, 2016 22 years, 10 months 10-0 (3) | Jonathan Dinong | 6 | UD | WIN | |
9 | Oct 22, 2016 22 years, 9 months 9-0 (3) | Trevor Marmon | 1 | KO | WIN | |
8 | Sep 15, 2016 22 years, 8 months 8-0 (2) | Gilbert Venegas | 6 | UD | WIN | |
7 | Mar 11, 2016 22 years, 2 months 7-0 (2) | Tavorus Teague | 6 | UD | WIN | |
6 | Apr 25, 2015 21 years, 4 months 6-0 (2) | Luis Rodriguez | 6 | UD | WIN | |
5 | Jan 9, 2015 21 years 5-0 (2) | Christian Steele | 6 | UD | WIN | |
4 | Nov 13, 2014 20 years, 10 months 4-0 (2) | Francisco Jalel Lopez | 6 | UD | WIN | |
3 | Jul 11, 2014 20 years, 6 months 3-0 (2) | Evan Woolsey | 1 | RTD | WIN | |
2 | Apr 25, 2014 20 years, 4 months 2-0 (1) | Jose Araguz | 2 | RTD | WIN | |
1 | Mar 7, 2014 20 years, 2 months 1-0 (0) | Cory Muldrew | 4 | UD | WIN |
