Kayla Harrison (19-1, 14) was born in Middletown, Ohio, U.S. on July 2, 1990. At the age of 27 years on June 21, 2018, she made her professional MMA debut against Brittney Elkin, winning the fight via 1st-round submission.
On April 13, 2024, 33-year old Kayla Harrison made her UFC debut on her 18th professional MMA fight at UFC 300 against a 42-year old Holly Holm, winning the fight in the 2nd round via submission.
She became the UFC bantamweight champion on June 7, 2025 at age 34 on her 20th professional MMA fight at UFC 316 after defeating a 35-year old Julianna Peña via 2nd-round submission.
Harrison's last fight was a bantamweight title fight against Julianna Peña for Peña's UFC Women's Championship title on June 7, 2025. She stopped Peña via submission and was crowned the new bantamweight UFC champion. She is on a 4-fight winning streak.
She has fought three times in the UFC, and has a record of 3 wins and 0 losses in the promotion.
Some of Kayla Harrison's best fights have been against Julianna Peña, Holly Holm, Mariana Morais, Genah Fabian, Kaitlin Young, Cindy Dandois and Ketlen Vieira.
Harrison has 1 loss on her MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
20  | Jun 7, 2025 34 years, 11 months 19-1 (14) | 35 years, 9 months 12-5 (8) | UFC | BT | 2 | SUB | WIN Kimura Won UFC Women's bantamweight title |
19  | Oct 5, 2024 34 years, 3 months 18-1 (13) | 33 years, 1 months 14-3 (6) | UFC | BT | 3 | UD | WIN |
18  | Apr 13, 2024 33 years, 9 months 17-1 (13) | 42 years, 5 months 15-6 (8) | UFC | BT | 2 | SUB | WIN Rear-naked choke |
17  | Nov 24, 2023 33 years, 4 months 16-1 (12) | 28 years, 8 months 11-4 (8) | PFL | LT | 3 | UD | WIN |
16  | Nov 25, 2022 32 years, 4 months 15-1 (12) | 28 years, 2 months 18-4 (17) | PFL | LT | 5 | UD | LOSS |
15 | Aug 20, 2022 32 years, 1 months 15-0 (12) | Martina Jindrová | PFL | LT | 1 | SUB | WIN Arm-triangle choke |
14  | Jul 1, 2022 31 years, 11 months 14-0 (11) | 36 years, 9 months 12-12-1 (8) | PFL | LT | 1 | TKO | WIN Punches |
13  | May 6, 2022 31 years, 10 months 13-0 (10) | 33 years, 11 months 6-2 (4) | PFL | LT | 3 | UD | WIN |
12 | Oct 27, 2021 31 years, 3 months 12-0 (10) | Taylor Guardado | PFL | LT | 2 | SUB | WIN Armbar |
11  | Aug 19, 2021 31 years, 1 months 11-0 (9) | 31 years, 11 months 4-1 (3) | PFL | LT | 1 | TKO | WIN Punches |
10  | Jun 25, 2021 30 years, 11 months 10-0 (8) | 36 years, 7 months 16-6 (13) | PFL | LT | 1 | SUB | WIN Armbar |
9  | May 6, 2021 30 years, 10 months 9-0 (7) | 26 years 16-10 (12) | PFL | LT | 1 | TKO | WIN Punches |
8 | Nov 20, 2020 30 years, 4 months 8-0 (6) | Courtney King | FT | 2 | TKO | WIN Punches | |
7 | Dec 31, 2019 29 years, 5 months 7-0 (5) | 25 years, 3 months 13-3 (12) | PFL | LT | 5 | UD | WIN |
6 | Oct 11, 2019 29 years, 3 months 6-0 (5) | Bobbi Jo Dalziel | PFL | LT | 1 | SUB | WIN Armbar |
5 | Jul 11, 2019 29 years 5-0 (4) | Morgan Frier | PFL | LT | 1 | SUB | WIN Keylock |
4 | May 9, 2019 28 years, 10 months 4-0 (3) | 24 years, 8 months 11-2 (11) | PFL | LT | 3 | UD | WIN |
3 | Dec 31, 2018 28 years, 5 months 3-0 (3) | Moriel Charneski | PFL | LT | 1 | TKO | WIN Punches |
2 | Aug 16, 2018 28 years, 1 months 2-0 (2) | Jozette Cotton | PFL | LT | 3 | TKO | WIN Punches |
1 | Jun 21, 2018 27 years, 11 months 1-0 (1) | Brittney Elkin | PFL | LT | 1 | SUB | WIN Armbar |
