| 2026-10-31 | UFC Fight Night: Moicano vs. Nolan | Women’s Strawweight | Piera Rodríguez def. Talita Alencar | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2026-03-14 | UFC Fight Night: Emmett vs. Vallejos | Women’s Strawweight | Piera Rodríguez def. Sam Hughes | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2025-08-02 | UFC on ESPN: Taira vs. Park | Women’s Strawweight | Piera Rodríguez def. Ketlen Souza | Decision (split) (29–28, 28–29, 29–28) | 3 | 5:00 |
| 2024-12-14 | UFC on ESPN: Covington vs. Buckley | Women’s Strawweight | Piera Rodríguez def. Josefine Lindgren Knutsson | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2024-05-18 | UFC Fight Night: Barboza vs. Murphy | Women’s Strawweight | Ariane Carnelossi def. Piera Rodríguez | DQ (headbutts) | 2 | 3:16 |
| 2023-04-15 | UFC on ESPN: Holloway vs. Allen | Women’s Strawweight | Gillian Robertson def. Piera Rodríguez | Submission (armbar) | 2 | 4:21 |
| 2022-10-15 | UFC Fight Night: Grasso vs. Araújo | Women’s Strawweight | Piera Rodríguez def. Sam Hughes | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2022-04-09 | UFC 273: Volkanovski vs. The Korean Zombie | Catchweight | Piera Rodríguez def. Kay Hansen | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |