| 2026-09-12 | UFC Fight Night: Silva vs. Delgado | Women’s Flyweight | Alexa Grasso def. Manon Fiorot | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2026-03-28 | UFC Fight Night: Adesanya vs. Pyfer | Women’s Flyweight | Alexa Grasso def. Maycee Barber | KO (punch) | 1 | 2:42 |
| 2025-05-10 | UFC 315: Muhammad vs. Della Maddalena | Women’s Flyweight | Natália Silva def. Alexa Grasso | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2024-09-14 | UFC 306: O'Malley vs. Dvalishvili | Women’s Flyweight | Valentina Shevchenko def. Alexa Grasso title | Decision (unanimous) (50–45, 50–45, 50–45) | 5 | 5:00 |
| 2023-09-16 | UFC Fight Night: Grasso vs. Shevchenko 2 | Women’s Flyweight | Alexa Grasso vs. Valentina Shevchenko title | Draw (split) (48–47, 47–48, 47–47) | 5 | 5:00 |
| 2023-03-04 | UFC 285: Jones vs. Gane | Women’s Flyweight | Alexa Grasso def. Valentina Shevchenko title | Submission (face crank) | 4 | 4:34 |
| 2022-10-15 | UFC Fight Night: Grasso vs. Araújo | Women’s Flyweight | Alexa Grasso def. Viviane Araújo | Decision (unanimous) (50–45, 49–46, 49–46) | 5 | 5:00 |
| 2022-03-26 | UFC on ESPN: Blaydes vs. Daukaus | Women’s Flyweight | Alexa Grasso def. Joanne Calderwood | Submission (rear-naked choke) | 1 | 3:57 |
| 2021-02-13 | UFC 258: Usman vs. Burns | Women’s Flyweight | Alexa Grasso def. Maycee Barber | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2020-08-29 | UFC Fight Night: Smith vs. Rakić | Women’s Flyweight | Alexa Grasso def. Ji Yeon Kim | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2019-09-21 | UFC Fight Night: Rodríguez vs. Stephens | Women’s Strawweight | Carla Esparza def. Alexa Grasso | Decision (majority) (28–28, 29–28, 29–28) | 3 | 5:00 |
| 2019-06-08 | UFC 238: Cejudo vs. Moraes | Women’s Strawweight | Alexa Grasso def. Karolina Kowalkiewicz | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2018-05-19 | UFC Fight Night: Maia vs. Usman | Women’s Strawweight | Tatiana Suarez def. Alexa Grasso | Submission (rear-naked choke) | 1 | 2:44 |
| 2017-08-05 | UFC Fight Night: Pettis vs. Moreno | Catchweight | Alexa Grasso def. Randa Markos | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2017-02-04 | UFC Fight Night: Bermudez vs. The Korean Zombie | Women’s Strawweight | Felice Herrig def. Alexa Grasso | Decision (unanimous) (29–28, 29–28, 30–27) | 3 | 5:00 |
| 2016-11-05 | The Ultimate Fighter Latin America 3 Finale: dos Anjos vs. Ferguson | Women’s Strawweight | Alexa Grasso def. Heather Jo Clark | Decision (unanimous) (30–27, 30–27, 29–28) | 3 | 5:00 |