Macy Chiasson (10-4, 6) was born in New Orleans, Louisiana, U.S. on July 27, 1991. At the age of 26 years on October 21, 2017, she made her professional MMA debut against Miranda Dearing, winning the fight via 3rd-round submission.
On March 2, 2019, 27-year old Macy Chiasson made her UFC debut on her 4th professional MMA fight at UFC 235 against a 30-year old Gina Mazany, winning the fight in the 1st round via TKO.
Chiasson's last fight was a 3-round unanimous decision loss to Ketlen Vieira at UFC on ESPN: Gamrot vs. Klein at age 33 on May 31, 2025. She is on a 1-fight losing streak.
She has fought 11 times in the UFC, and has a record of 7 wins and 4 losses in the promotion.
Some of Macy Chiasson's best fights have been against Gina Mazany, Pannie Kianzad, Sarah Moras, Mayra Bueno Silva, Shanna Young, Marion Reneau and Norma Dumont.
Chiasson has 4 losses on her MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
14  | May 31, 2025 33 years, 10 months 10-4 (6) | 33 years, 9 months 14-4 (6) | UFC | FT | 3 | UD | LOSS |
13  | Jun 29, 2024 32 years, 11 months 10-3 (6) | 32 years, 10 months 10-3-1 (7) | UFC | BT | 2 | TKO | WIN Doctor stoppage |
12  | Mar 16, 2024 32 years, 7 months 9-3 (5) | 32 years, 3 months 16-7 (3) | UFC | BT | 1 | SUB | WIN Rear-naked choke |
11  | Sep 10, 2022 31 years, 1 months 8-3 (4) | 34 years, 5 months 13-6 (10) | UFC | FT | 3 | KO | LOSS Upkick to the body |
10  | May 7, 2022 30 years, 9 months 8-2 (4) | 31 years, 7 months 7-1 (2) | UFC | FT | 3 | SD | WIN |
9  | Dec 18, 2021 30 years, 4 months 7-2 (4) | 33 years, 3 months 12-8 (3) | UFC | FT | 2 | SUB | LOSS Guillotine choke |
8  | Mar 20, 2021 29 years, 7 months 7-1 (4) | 43 years, 9 months 9-6-1 (8) | UFC | BT | 3 | UD | WIN |
7  | Feb 15, 2020 28 years, 6 months 6-1 (4) | 28 years, 11 months 7-2 (4) | UFC | BT | 3 | UD | WIN |
6  | Sep 28, 2019 28 years, 2 months 5-1 (4) | 37 years, 6 months 9-4 (4) | UFC | BT | 3 | UD | LOSS |
5  | May 4, 2019 27 years, 9 months 5-0 (4) | 31 years 5-4 (3) | UFC | BT | 2 | TKO | WIN Punches |
4  | Mar 2, 2019 27 years, 7 months 4-0 (3) | 30 years, 6 months 5-2 (3) | UFC | BT | 1 | TKO | WIN Punches |
3 | Nov 30, 2018 27 years, 4 months 3-0 (2) | 26 years, 11 months 10-3 (3) | TUF | FT | 2 | SUB | WIN Rear-naked choke |
2 | May 4, 2018 26 years, 9 months 2-0 (1) | Allison Schmidt | FT | 3 | UD | WIN | |
1 | Oct 21, 2017 26 years, 2 months 1-0 (1) | Miranda Dearing | FT | 3 | SUB | WIN Armbar |
