| 2026-10-17 | UFC Fight Night: Buckley vs. Malott | Women’s Flyweight | Katlyn Chookagian def. Mackenzie Stiller | TKO (head kick and punches) | 1 | 4:46 |
| 2024-03-09 | UFC 299: O'Malley vs. Vera 2 | Women’s Flyweight | Maycee Barber def. Katlyn Chookagian | Decision (unanimous) (30–27, 30–27, 29–28) | 3 | 5:00 |
| 2022-10-22 | UFC 280: Oliveira vs. Makhachev | Catchweight | Manon Fiorot def. Katlyn Chookagian | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2022-05-14 | UFC on ESPN: Błachowicz vs. Rakić | Women’s Flyweight | Katlyn Chookagian def. Amanda Ribas | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2022-01-15 | UFC on ESPN: Kattar vs. Chikadze | Women’s Flyweight | Katlyn Chookagian def. Jennifer Maia | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2021-05-15 | UFC 262: Oliveira vs. Chandler | Women’s Flyweight | Katlyn Chookagian def. Viviane Araújo | Decision (unanimous) (29–28, 29–28, 30–27) | 3 | 5:00 |
| 2020-11-21 | UFC 255: Figueiredo vs. Perez | Women’s Flyweight | Katlyn Chookagian def. Cynthia Calvillo | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2020-10-18 | UFC Fight Night: Ortega vs. The Korean Zombie | Women’s Flyweight | Jéssica Andrade def. Katlyn Chookagian | TKO (body punches) | 1 | 4:57 |
| 2020-05-30 | UFC on ESPN: Woodley vs. Burns | Women’s Flyweight | Katlyn Chookagian def. Antonina Shevchenko | Decision (unanimous) (30–25, 30–25, 30–25) | 3 | 5:00 |
| 2020-02-08 | UFC 247: Jones vs. Reyes | Women’s Flyweight | Valentina Shevchenko def. Katlyn Chookagian title | TKO (elbows and punches) | 3 | 1:03 |
| 2019-11-02 | UFC 244: Masvidal vs. Diaz | Catchweight | Katlyn Chookagian def. Jennifer Maia | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2019-06-08 | UFC 238: Cejudo vs. Moraes | Women’s Flyweight | Katlyn Chookagian def. Joanne Calderwood | Decision (unanimous) (30–27, 29–28, 29–28) | 3 | 5:00 |
| 2018-12-08 | UFC 231: Holloway vs. Ortega | Women’s Flyweight | Jessica Eye def. Katlyn Chookagian | Decision (split) (29–28, 28–29, 29–28) | 3 | 5:00 |
| 2018-07-28 | UFC on Fox: Alvarez vs. Poirier 2 | Women’s Flyweight | Katlyn Chookagian def. Alexis Davis | Decision (unanimous) (29–28, 29–28, 30–27) | 3 | 5:00 |
| 2018-01-27 | UFC on Fox: Jacaré vs. Brunson 2 | Women’s Flyweight | Katlyn Chookagian def. Mara Romero Borella | Decision (unanimous) (29–28, 29–28, 30–27) | 3 | 5:00 |
| 2017-04-08 | UFC 210: Cormier vs. Johnson 2 | Women’s Bantamweight | Katlyn Chookagian def. Irene Aldana | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2016-11-12 | UFC 205: Alvarez vs. McGregor | Women’s Bantamweight | Liz Carmouche def. Katlyn Chookagian | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2016-07-13 | UFC Fight Night: McDonald vs. Lineker | Women’s Bantamweight | Katlyn Chookagian def. Lauren Murphy | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |