| 2026-05-16 | UFC Fight Night: Allen vs. Costa | Women’s Strawweight | Alice Ardelean def. Polyana Viana | Submission (capsule lock) | 2 | 4:36 |
| 2025-04-26 | UFC on ESPN: Machado Garry vs. Prates | Women’s Strawweight | Jaqueline Amorim def. Polyana Viana | Submission (rear-naked choke) | 2 | 1:49 |
| 2024-01-20 | UFC 297: Strickland vs. du Plessis | Women’s Strawweight | Gillian Robertson def. Polyana Viana | TKO (punches) | 2 | 3:12 |
| 2023-08-12 | UFC on ESPN: Luque vs. dos Anjos | Women’s Strawweight | Iasmin Lucindo def. Polyana Viana | Submission (arm-triangle choke) | 2 | 3:42 |
| 2022-11-05 | UFC Fight Night: Rodriguez vs. Lemos | Women’s Strawweight | Polyana Viana def. Jinh Yu Frey | KO (punches) | 1 | 0:47 |
| 2022-05-21 | UFC Fight Night: Holm vs. Vieira | Women’s Strawweight | Tabatha Ricci def. Polyana Viana | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2021-02-13 | UFC 258: Usman vs. Burns | Women’s Strawweight | Polyana Viana def. Mallory Martin | Submission (armbar) | 1 | 3:18 |
| 2020-08-29 | UFC Fight Night: Smith vs. Rakić | Women’s Strawweight | Polyana Viana def. Emily Whitmire | Submission (armbar) | 1 | 1:53 |
| 2019-08-10 | UFC Fight Night: Shevchenko vs. Carmouche 2 | Women’s Flyweight | Veronica Macedo def. Polyana Viana | Submission (armbar) | 1 | 1:09 |
| 2019-03-02 | UFC 235: Jones vs. Smith | Women’s Strawweight | Hannah Cifers def. Polyana Viana | Decision (split) (29–28, 28–29, 29–28) | 3 | 5:00 |
| 2018-08-04 | UFC 227: Dillashaw vs. Garbrandt 2 | Women’s Strawweight | JJ Aldrich def. Polyana Viana | Decision (unanimous) (29–28, 29–28, 29–27) | 3 | 5:00 |
| 2018-02-03 | UFC Fight Night: Machida vs. Anders | Women’s Strawweight | Polyana Viana def. Maia Stevenson | Submission (rear-naked choke) | 1 | 3:50 |