| Geplant | | Joji Goto  | - |  | PFL Dubai: Nemkov vs Bilostenniy | Nov 14, 2026 | - | - | Dubai, United Arab Emirates  |
| Cancelled Bout | | Lewis McGrillen  | - |  | PFL Austin: Eblen vs Kasanganay 2 | Jul 18, 2026 | - | - | Austin, Texas, United States  |
| Sieg | 25-7 | Magomed Magomedov  | KO (Punch) |  | PFL Champions Series: Nurmagomedov vs Hughes 2 | Oct 03, 2025 | 2 | 4:31 | Dubai, United Arab Emirates |
| Sieg | 24-7 | Raufeon Stots | Decision (Unanimous) |  | PFL World Tournament 7: 2025 Semifinals | Jun 27, 2025 | 3 | 5:00 | Chicago, Illinois, United States |
| Niederlage | 23-7 | Kyoji Horiguchi | Decision (Unanimous) |  | RIZIN 47 | Jun 09, 2024 | 3 | 5:00 | Shibuya, Tokyo, Japan |
| Niederlage | 23-6 | Patchy Mix | Submission (Rear-Naked Choke) |  | Bellator 301: Amosov vs Jackson | Nov 17, 2023 | 2 | 1:51 | Chicago, Illinois, United States |
| Sieg | 23-5 | Patricio Freire  | Decision (Unanimous) |  | Bellator 297: Nemkov vs Romero | Jun 16, 2023 | 5 | 5:00 | Chicago, Illinois, United States |
| Cancelled Bout | | Raufeon Stots | - |  | Bellator 279: Pettis vs Stots | Apr 23, 2022 | - | - | Honolulu, Hawaii, United States |
| Sieg | 22-5 | Kyoji Horiguchi | KO (spinning backfist) |  | Bellator 272: Pettis vs Horiguchi | Dec 03, 2021 | 4 | 3:24 | Uncasville, Connecticut, United States |
| Sieg | 21-5 | Juan Archuleta | Decision (Unanimous) |  | Bellator 258: Archuleta vs Pettis | May 07, 2021 | 5 | 5:00 | Uncasville, Connecticut, United States |
| Sieg | 20-5 | Ricky Bandejas | Decision (Unanimous) |  | Bellator 242: Bandejas vs Pettis | Jul 24, 2020 | 3 | 5:00 | Uncasville, Connecticut, United States |
| Sieg | 19-5 | Alfred Khashakyan | Technical Submission (Guillotine Choke) |  | Bellator 238: Budd vs Cyborg | Jan 25, 2020 | 1 | 3:00 | Inglewood, California, United States |
| Sieg | 18-5 | Alex Perez | Decision (Unanimous) |  | UFC on ESPN+ 17: Rodriguez vs Stephens | Sep 21, 2019 | 3 | 5:00 | Mexico City, Mexico |
| Niederlage | 17-5 | Rob Font | Decision (Unanimous) |  | UFC on FOX 31: Lee vs Iaquinta 2 | Dec 15, 2018 | 3 | 5:00 | Milwaukee, Wisconsin, United States |
| Niederlage | 17-4 | Jussier Formiga | Decision (Unanimous) |  | UFC 229 | Oct 06, 2018 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 17-3 | Joseph Benavidez | Decision (Split) |  | UFC 225 | Jun 09, 2018 | 3 | 5:00 | Chicago, Illinois, United States |
| Niederlage | 16-3 | Henry Cejudo | Decision (Unanimous) |  | UFC 218 | Dec 02, 2017 | 3 | 5:00 | Detroit, Michigan, United States |
| Sieg | 16-2 | Brandon Moreno  | Decision (Unanimous) |  | UFC Fight Night 114: Pettis vs Moreno | Aug 05, 2017 | 5 | 5:00 | Mexico City, Mexico |
| Sieg | 15-2 | John Moraga | Decision (Unanimous) |  | UFC Fight Night 103: Rodriguez vs Penn | Jan 15, 2017 | 3 | 5:00 | Phoenix, Arizona, United States |
| Sieg | 14-2 | Chris Kelades  | Decision (unanimous) |  | UFC 197: Jones vs Saint Preux | Apr 23, 2016 | 3 | 5:00 | New York City, United States |
| Sieg | 13-2 | Chris Cariaso | Decision (unanimous) |  | UFC 192: Cormier vs Gustafsson | Oct 03, 2015 | 3 | 5:00 | Houston, Texas, United States |
| Niederlage | 12-2 | Ryan Benoit | TKO (punches) |  | UFC 185 | Mar 14, 2015 | 2 | 1:34 | Dallas, Texas, United States |
| Sieg | 12-1 | Matt Hobar | Decision (unanimous) |  | UFC 181 | Dec 06, 2014 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 11-1 | Yaotzin Meza | Decision (unanimous) | | UFC Fight Night: Henderson vs. Khabilov | Jun 07, 2014 | 3 | 5:00 | Albuquerque, New Mexico, United States |
| Niederlage | 10-1 | Alex Caceres | Submission (rearnaked choke) | | UFC on Fox: Henderson vs. Thomson | Jan 25, 2014 | 3 | 4:39 | Chicago, Illinois, United States |
| Sieg | 10-0 | Will Campuzano | Decision (unanimous) | | UFC 167 | Nov 16, 2013 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 9-0 | James Porter | Submission (kimura) | | NAFC: Battle in the Ballroom | Sep 28, 2013 | 1 | 2:33 | Milwaukee, Wisconsin, United States |
| Sieg | 8-0 | Dillard Pegg | TKO (punches) | | RFA 8 | Jun 21, 2013 | 1 | 0:51 | Milwaukee, Wisconsin, United States |
| Sieg | 7-0 | Josh Robinson | Decision (unanimous) | | NAFC: Battleground | Mar 29, 2013 | 3 | 5:00 | Milwaukee, Wisconsin, United States |
| Sieg | 6-0 | Jimmy Jones | Decision (unanimous) | | RFA 4 | Nov 02, 2012 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 5-0 | Tom McKenna | Submission (guillotine choke) | | LOF 53 - Memorium | Jun 16, 2012 | 1 | 3:52 | Indianapolis, Indiana, United States |
| Sieg | 4-0 | Chris Haney | Decision (unanimous) | | NAFC - Collosseum | May 04, 2012 | 3 | 5:00 | Milwaukee, Wisconsin, United States |
| Sieg | 3-0 | Mike Lindquist | Submission (arm-triangle choke) | | Madtown Throwdown 26 - The Return | Jan 07, 2012 | 1 | 1:43 | Madison, Wisconsin, United States |
| Sieg | 2-0 | Tony Zelinsk | TKO (head kick) | | NAFC - Unleashed | Nov 18, 2011 | 2 | 1:59 | Milwaukee, Wisconsin, United States |
| Sieg | 1-0 | Kyle Vivian | TKO (head kick) | | CFC 7- Canadian Fighting Championship | Sep 10, 2011 | 1 | 1:46 | Winnipeg, Manitoba, Canada |
