Ketlen Vieira (15-4, 6) was born in Manaus, Amazonas, Brazil on August 26, 1991. At the age of 23 years on October 2, 2014, she made her professional MMA debut against Juliana Leite, winning the fight via 2nd-round TKO.
On October 1, 2016, 25-year old Ketlen Vieira made her UFC debut on her 7th professional MMA fight at UFC Fight Night: Lineker vs. Dodson against Kelly Faszholz, winning the fight via 3-round split decision.
Vieira's last fight was a 3-round unanimous decision win against Macy Chiasson at UFC on ESPN: Gamrot vs. Klein at age 33 on May 31, 2025. She is on a 1-fight winning streak.
She has fought 13 times in the UFC, and has a record of 9 wins and 4 losses in the promotion.
Some of Ketlen Vieira's best fights have been against Sara McMann, Macy Chiasson, Kelly Faszholz, Ashlee Evans-Smith, Sijara Eubanks, Pannie Kianzad and Cat Zingano.
Vieira has 4 losses on her MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
19  | May 31, 2025 33 years, 9 months 15-4 (6) | 33 years, 10 months 10-3 (6) | UFC | FT | 3 | UD | WIN |
18  | Oct 5, 2024 33 years, 1 months 14-4 (6) | 34 years, 3 months 17-1 (13) | UFC | BT | 3 | UD | LOSS |
17  | Jul 22, 2023 31 years, 10 months 14-3 (6) | 31 years, 7 months 16-6 (3) | UFC | BT | 3 | UD | WIN |
16  | Jan 14, 2023 31 years, 4 months 13-3 (6) | 34 years, 4 months 14-8 (4) | UFC | BT | 3 | SD | LOSS |
15  | May 21, 2022 30 years, 8 months 13-2 (6) | 40 years, 7 months 14-5 (8) | UFC | BT | 5 | SD | WIN |
14  | Nov 20, 2021 30 years, 2 months 12-2 (6) | 35 years, 3 months 19-7 (10) | UFC | BT | 5 | UD | WIN |
13 | Feb 20, 2021 29 years, 5 months 11-2 (6) | Yana Kunitskaya | UFC | BT | 3 | UD | LOSS |
12  | Sep 27, 2020 29 years, 1 months 11-1 (6) | 35 years, 5 months 6-4 (2) | UFC | BT | 3 | UD | WIN |
11  | Dec 14, 2019 28 years, 3 months 10-1 (6) | 31 years, 8 months 11-5 (8) | UFC | BT | 1 | KO | LOSS Punches |
10  | Mar 3, 2018 26 years, 6 months 10-0 (6) | 35 years, 8 months 9-2 (8) | UFC | BT | 3 | SD | WIN |
9  | Sep 9, 2017 26 years 9-0 (6) | 36 years, 11 months 11-3 (6) | UFC | BT | 2 | SUB | WIN Arm-triangle choke |
8  | Apr 15, 2017 25 years, 7 months 8-0 (5) | 29 years, 9 months 5-1 (3) | UFC | BT | 3 | UD | WIN |
7 | Oct 1, 2016 25 years, 1 months 7-0 (5) | Kelly Faszholz | UFC | BT | 3 | SD | WIN |
6 | Feb 20, 2016 24 years, 5 months 6-0 (5) | Estefani Almeida | BT | 3 | UD | WIN | |
5 | Dec 17, 2015 24 years, 3 months 5-0 (5) | Jessica Maciel | BT | 1 | TKO | WIN Punches | |
4 | Sep 12, 2015 24 years 4-0 (4) | Laet Ferreira | BT | 1 | SUB | WIN Rear-naked choke | |
3 | Mar 12, 2015 23 years, 6 months 3-0 (3) | Monique Bastos | BT | 1 | SUB | WIN Rear-naked choke | |
2 | Nov 13, 2014 23 years, 2 months 2-0 (2) | Kenya Miranda da Silva | BT | 2 | SUB | WIN Kimura | |
1 | Oct 2, 2014 23 years, 1 months 1-0 (1) | Juliana Leite | BT | 2 | TKO | WIN Punches |
