| 2026-06-20 | UFC Fight Night: Kape vs. Horiguchi | Light Heavyweight | Navajo Stirling def. Ion Cuțelaba | TKO (punches and elbows) | 2 | 3:23 |
| 2026-03-14 | UFC Fight Night: Emmett vs. Vallejos | Light Heavyweight | Ion Cuțelaba def. Oumar Sy | Submission (guillotine choke) | 1 | 4:24 |
| 2025-05-10 | UFC 315: Muhammad vs. Della Maddalena | Light Heavyweight | Modestas Bukauskas def. Ion Cuțelaba | Decision (split) (27–30, 30–27, 29–28) | 3 | 5:00 |
| 2025-02-22 | UFC Fight Night: Cejudo vs. Song | Light Heavyweight | Ion Cuțelaba def. Ibo Aslan | Submission (arm-triangle choke) | 1 | 2:51 |
| 2024-09-28 | UFC Fight Night: Moicano vs. Saint Denis | Light Heavyweight | Ion Cuțelaba def. Ivan Erslan | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2024-03-09 | UFC 299: O'Malley vs. Vera 2 | Light Heavyweight | Philipe Lins def. Ion Cuțelaba | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2023-04-15 | UFC on ESPN: Holloway vs. Allen | Light Heavyweight | Ion Cuțelaba def. Tanner Boser | TKO (punches) | 1 | 2:05 |
| 2022-11-19 | UFC Fight Night: Nzechukwu vs. Cuțelaba | Light Heavyweight | Kennedy Nzechukwu def. Ion Cuțelaba | TKO (knee and punches) | 2 | 1:02 |
| 2022-09-10 | UFC 279: Diaz vs. Ferguson | Light Heavyweight | Johnny Walker def. Ion Cuțelaba | Submission (rear-naked choke) | 1 | 4:37 |
| 2022-05-14 | UFC on ESPN: Błachowicz vs. Rakić | Light Heavyweight | Ryan Spann def. Ion Cuțelaba | Submission (guillotine choke) | 1 | 2:22 |
| 2021-09-18 | UFC Fight Night: Smith vs. Spann | Light Heavyweight | Ion Cuțelaba def. Devin Clark | Decision (unanimous) (30–26, 29–26, 29–27) | 3 | 5:00 |
| 2021-05-01 | UFC on ESPN: Reyes vs. Procházka | Light Heavyweight | Ion Cuțelaba vs. Dustin Jacoby | Draw (split) (28–29, 29–28, 28–28) | 3 | 5:00 |
| 2020-10-24 | UFC 254: Khabib vs. Gaethje | Light Heavyweight | Magomed Ankalaev def. Ion Cuțelaba | KO (punches) | 1 | 4:19 |
| 2020-02-29 | UFC Fight Night: Benavidez vs. Figueiredo | Light Heavyweight | Magomed Ankalaev def. Ion Cuțelaba | TKO (head kicks and punches) | 1 | 0:38 |
| 2019-09-28 | UFC Fight Night: Hermansson vs. Cannonier | Light Heavyweight | Ion Cuțelaba def. Khalil Rountree Jr. | TKO (elbows) | 1 | 2:35 |
| 2019-04-27 | UFC Fight Night: Jacaré vs. Hermansson | Light Heavyweight | Glover Teixeira def. Ion Cuțelaba | Submission (rear-naked choke) | 2 | 3:37 |
| 2018-07-28 | UFC on Fox: Alvarez vs. Poirier 2 | Light Heavyweight | Ion Cuțelaba def. Gadzhimurad Antigulov | TKO (punches and elbows) | 1 | 4:25 |
| 2017-06-11 | UFC Fight Night: Lewis vs. Hunt | Light Heavyweight | Ion Cuțelaba def. Henrique da Silva | KO (punches) | 1 | 0:22 |
| 2016-12-03 | The Ultimate Fighter: Tournament of Champions Finale | Light Heavyweight | Jared Cannonier def. Ion Cuțelaba | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2016-10-01 | UFC Fight Night: Lineker vs. Dodson | Light Heavyweight | Ion Cuțelaba def. Jonathan Wilson | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2016-06-18 | UFC Fight Night: MacDonald vs. Thompson | Light Heavyweight | Misha Cirkunov def. Ion Cuțelaba | Submission (arm-triangle choke) | 3 | 1:22 |