| 2026-08-22 | UFC Fight Night: Hernandez vs. Rodrigues | Heavyweight | Vitor Petrino def. Serghei Spivac | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2026-02-21 | UFC Fight Night: Strickland vs. Hernandez | Heavyweight | Serghei Spivac def. Ante Delija | Decision (unanimous) (30–27, 29–28, 29–28) | 3 | 5:00 |
| 2025-06-07 | UFC 316: Dvalishvili vs. O'Malley 2 | Heavyweight | Waldo Cortes-Acosta def. Serghei Spivac | Decision (unanimous) (30–27, 29–28, 29–28) | 3 | 5:00 |
| 2025-01-18 | UFC 311: Makhachev vs. Moicano | Heavyweight | Jailton Almeida def. Serghei Spivac | TKO (punches) | 1 | 4:53 |
| 2024-08-10 | UFC on ESPN: Tybura vs. Spivac 2 | Heavyweight | Serghei Spivac def. Marcin Tybura | Submission (armbar) | 1 | 1:44 |
| 2023-09-02 | UFC Fight Night: Gane vs. Spivac | Heavyweight | Ciryl Gane def. Serghei Spivac | TKO (punches) | 2 | 3:44 |
| 2023-02-04 | UFC Fight Night: Lewis vs. Spivac | Heavyweight | Serghei Spivac def. Derrick Lewis | Submission (arm-triangle choke) | 1 | 3:05 |
| 2022-08-06 | UFC on ESPN: Santos vs. Hill | Heavyweight | Serghei Spivac def. Augusto Sakai | TKO (punches) | 2 | 3:42 |
| 2022-03-05 | UFC 272: Covington vs. Masvidal | Heavyweight | Serghei Spivac def. Greg Hardy | TKO (punches) | 1 | 2:16 |
| 2021-09-04 | UFC Fight Night: Brunson vs. Till | Heavyweight | Tom Aspinall def. Serghei Spivac | TKO (elbow and punches) | 1 | 2:30 |
| 2021-06-19 | UFC on ESPN: The Korean Zombie vs. Ige | Heavyweight | Serghei Spivac def. Aleksei Oleinik | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2021-02-20 | UFC Fight Night: Blaydes vs. Lewis | Heavyweight | Serghei Spivac def. Jared Vanderaa | TKO (punches) | 2 | 4:32 |
| 2020-07-19 | UFC Fight Night: Figueiredo vs. Benavidez 2 | Heavyweight | Serghei Spivac def. Carlos Felipe | Decision (majority) (28–28, 29–27, 29–27) | 3 | 5:00 |
| 2020-02-29 | UFC Fight Night: Benavidez vs. Figueiredo | Heavyweight | Marcin Tybura def. Serghei Spivac | Decision (unanimous) (30–27, 30–27, 29–28) | 3 | 5:00 |
| 2019-10-05 | UFC 243: Whittaker vs. Adesanya | Heavyweight | Serghei Spivac def. Tai Tuivasa | Technical Submission (arm-triangle choke) | 2 | 3:14 |
| 2019-05-04 | UFC Fight Night: Iaquinta vs. Cowboy | Heavyweight | Walt Harris def. Serghei Spivac | TKO (knees and punches) | 1 | 0:50 |