Mackenzie Dern (16-5, 8) was born in Phoenix, Arizona, U.S. on March 24, 1993. At the age of 23 years on July 22, 2016, she made her professional MMA debut against Kenia Rosas, winning the fight via 3-round unanimous decision.
On March 3, 2018, 24-year old Mackenzie Dern made her UFC debut on her 6th professional MMA fight at UFC 222 against Ashley Yoder, winning the fight via 3-round split decision.
She became the UFC strawweight champion on October 25, 2025 at age 32 on her 21st professional MMA fight at UFC 321 after defeating a 37-year old Virna Jandiroba via 5-round unanimous decision.
Dern's last fight was a strawweight title fight against Virna Jandiroba for the vacant UFC Women's Championship title on October 25, 2025. She won the fight via 5th-round unanimous decision and won the title. She is on a 3-fight winning streak.
She has fought 16 times in the UFC, and has a record of 11 wins and 5 losses in the promotion.
Some of Mackenzie Dern's best fights have been against Virna Jandiroba, Amanda Cooper, Ashley Yoder, Hannah Cifers, Amanda Ribas, Randa Markos and Loopy Godinez. For details about these fights refer to "Best fights of Mackenzie Dern".
Dern has 5 losses on her MMA record. For details about these losses refer to "Mackenzie Dern Losses".
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
21  | Oct 25, 2025 32 years, 7 months 16-5 (8) | 37 years, 4 months 22-3 (15) | UFC | ST | 5 | UD | Win Won UFC Women's strawweight title |
20  | Jan 11, 2025 31 years, 9 months 15-5 (8) | 31 years, 4 months 13-5 (8) | UFC | ST | 3 | SUB | Win Armbar |
19  | Aug 3, 2024 31 years, 4 months 14-5 (7) | 30 years, 10 months 12-4 (3) | UFC | ST | 3 | UD | Win |
18  | Feb 17, 2024 30 years, 10 months 13-5 (7) | 36 years, 8 months 13-3-1 (10) | UFC | ST | 3 | UD | Loss |
17  | Nov 11, 2023 30 years, 7 months 13-4 (7) | 32 years, 1 month 24-12 (17) | UFC | ST | 2 | TKO | Loss Punches |
16  | May 20, 2023 30 years, 1 months 13-3 (7) | 38 years, 4 months 15-12 (5) | UFC | ST | 5 | UD | Win |
15  | Oct 1, 2022 29 years, 6 months 12-3 (7) | 33 years, 3 months 16-3 (8) | UFC | ST | 5 | MD | Loss |
14 | Apr 9, 2022 29 years 12-2 (7) | Tecia Torres | UFC | ST | 3 | SD | Win |
13  | Oct 9, 2021 28 years, 6 months 11-2 (7) | 34 years, 5 months 14-1-2 (7) | UFC | ST | 5 | UD | Loss |
12 | Apr 10, 2021 28 years 11-1 (7) | Nina Nunes | UFC | ST | 1 | SUB | Win Armbar |
11 | Dec 12, 2020 27 years, 8 months 10-1 (6) | 32 years, 6 months 16-1 (13) | UFC | ST | 3 | UD | Win |
10 | Sep 19, 2020 27 years, 5 months 9-1 (6) | Randa Markos | UFC | ST | 1 | SUB | Win Armbar |
9 | May 30, 2020 27 years, 2 months 8-1 (5) | Hannah Cifers | UFC | ST | 1 | SUB | Win Kneebar |
8 | Oct 12, 2019 26 years, 6 months 7-1 (4) | 26 years, 1 month 7-1 (6) | UFC | ST | 3 | UD | Loss |
7 | May 12, 2018 25 years, 1 months 7-0 (4) | Amanda Cooper | UFC | ST | 1 | SUB | Win Rear-naked choke |
6 | Mar 3, 2018 24 years, 11 months 6-0 (3) | Ashley Yoder | UFC | ST | 3 | SD | Win |
5  | Dec 8, 2017 24 years, 8 months 5-0 (3) | 38 years, 11 months 8-5 (3) | ST | 3 | SUB | Win Armbar | |
4 | Oct 13, 2017 24 years, 6 months 4-0 (2) | Mandy Polk | FL | 1 | SUB | Win Rear-naked choke | |
3 | Mar 10, 2017 23 years, 11 months 3-0 (1) | Katherine Roy | ST | 3 | UD | Win | |
2  | Oct 14, 2016 23 years, 6 months 2-0 (1) | 21 years, 8 months 6-2 (4) | ST | 1 | SUB | Win Rear-naked choke | |
1 | Jul 22, 2016 23 years, 3 months 1-0 (0) | Kenia Rosas | ST | 3 | UD | Win |
