| 2025-07-26 | UFC on ABC: Whittaker vs. de Ridder | Women’s Strawweight | Tabatha Ricci def. Amanda Ribas | TKO (elbow and punches) | 2 | 2:59 |
| 2025-01-11 | UFC Fight Night: Dern vs. Ribas 2 | Women’s Strawweight | Mackenzie Dern def. Amanda Ribas | Submission (armbar) | 3 | 4:56 |
| 2024-03-23 | UFC on ESPN: Ribas vs. Namajunas | Women’s Flyweight | Rose Namajunas def. Amanda Ribas | Decision (unanimous) (49–46, 49–46, 48–47) | 5 | 5:00 |
| 2023-11-18 | UFC Fight Night: Allen vs. Craig | Women’s Strawweight | Amanda Ribas def. Luana Pinheiro | TKO (spinning wheel kick and punches) | 3 | 3:53 |
| 2023-06-24 | UFC on ABC: Emmett vs. Topuria | Women’s Flyweight | Maycee Barber def. Amanda Ribas | TKO (punches and elbows) | 2 | 3:42 |
| 2023-03-04 | UFC 285: Jones vs. Gane | Women’s Flyweight | Amanda Ribas def. Viviane Araújo | Decision (unanimous) (29–27, 30–26, 30–27) | 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 |
| 2021-10-30 | UFC 267: Błachowicz vs. Teixeira | Women’s Strawweight | Amanda Ribas def. Virna Jandiroba | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2021-01-24 | UFC 257: Poirier vs. McGregor 2 | Women’s Strawweight | Marina Rodriguez def. Amanda Ribas | TKO (elbow and punches) | 2 | 0:54 |
| 2020-07-12 | UFC 251: Usman vs. Masvidal | Women’s Flyweight | Amanda Ribas def. Paige VanZant | Submission (armbar) | 1 | 2:21 |
| 2020-03-14 | UFC Fight Night: Lee vs. Oliveira | Women’s Strawweight | Amanda Ribas def. Randa Markos | Decision (unanimous) (30–26, 30–25, 30–25) | 3 | 5:00 |
| 2019-10-12 | UFC Fight Night: Joanna vs. Waterson | Women’s Strawweight | Amanda Ribas def. Mackenzie Dern | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2019-06-29 | UFC on ESPN: Ngannou vs. dos Santos | Women’s Strawweight | Amanda Ribas def. Emily Whitmire | Submission (rear-naked choke) | 2 | 2:10 |