| 2024-11-02 | UFC Fight Night: Moreno vs. Albazi | Heavyweight | Alexander Romanov def. Rodrigo Nascimento | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2024-06-01 | UFC 302: Makhachev vs. Poirier | Heavyweight | Jailton Almeida def. Alexander Romanov | Submission (rear-naked choke) | 1 | 2:27 |
| 2023-07-01 | UFC on ESPN: Strickland vs. Magomedov | Heavyweight | Alexander Romanov def. Blagoy Ivanov | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2023-03-11 | UFC Fight Night: Yan vs. Dvalishvili | Heavyweight | Alexander Volkov def. Alexander Romanov | TKO (punches) | 1 | 2:16 |
| 2022-08-20 | UFC 278: Usman vs. Edwards 2 | Heavyweight | Marcin Tybura def. Alexander Romanov | Decision (majority) (29–28, 29–28, 28–28) | 3 | 5:00 |
| 2022-04-30 | UFC on ESPN: Font vs. Vera | Heavyweight | Alexander Romanov def. Chase Sherman | Submission (americana) | 1 | 2:11 |
| 2021-10-09 | UFC Fight Night: Dern vs. Rodriguez | Heavyweight | Alexander Romanov def. Jared Vanderaa | TKO (punches) | 2 | 4:43 |
| 2021-04-17 | UFC on ESPN: Whittaker vs. Gastelum | Heavyweight | Alexander Romanov def. Juan Espino | Technical Decision (split) (29–28, 28–29, 29–28) | 3 | 1:05 |
| 2020-11-07 | UFC on ESPN: Santos vs. Teixeira | Heavyweight | Alexander Romanov def. Marcos Rogério de Lima | Technical Submission (forearm choke) | 1 | 4:48 |
| 2020-09-12 | UFC Fight Night: Waterson vs. Hill | Heavyweight | Alexander Romanov def. Roque Martinez | Submission (arm-triangle choke) | 2 | 4:22 |