| Niederlage | 25-11 | Michael Chiesa  | Submission (Rear-Naked Choke) |  | UFC Fight Night: Sandhagen vs Nurmagomedov | Aug 03, 2024 | 1 | 3:44 | Abu Dhabi, Dubai, United Arab Emirates  |
| Niederlage | 25-10 | Paddy Pimblett  | Decision (Unanimous) |  | UFC 296: Edwards vs Covington | Dec 16, 2023 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 25-9 | Bobby Green | Technical Submission (Arm-Triangle Choke) |  | UFC 291: Poirier vs Gaethje 2 | Jul 29, 2023 | 3 | 4:54 | Salt Lake City, Utah, United States |
| Niederlage | 25-8 | Nate Diaz | Submission (guillotine choke) |  | UFC 279: Diaz vs Ferguson | Sep 10, 2022 | 4 | 2:52 | Las Vegas, Nevada, United States |
| Niederlage | 25-7 | Michael Chandler | KO (front kick) |  | UFC 274: Oliveira vs Gaethje | May 07, 2022 | 2 | 0:17 | Phoenix, Arizona, United States |
| Niederlage | 25-6 | Beneil Dariush | Decision (Unanimous) |  | UFC 262: Oliveira vs Chandler | May 15, 2021 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 25-5 | Charles Oliveira  | Decision (Unanimous) |  | UFC 256: Figueiredo vs Moreno | Dec 12, 2020 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 25-4 | Justin Gaethje | TKO (Punches) |  | UFC 249: Ferguson vs Gaethje | May 09, 2020 | 5 | 3:39 | Jacksonville, Florida, United States |
| Cancelled Bout | | Justin Gaethje | - |  | UFC 249: Ferguson vs Gaethje | Apr 18, 2020 | - | - | Lemoore, California, United States |
| Cancelled Bout | | Khabib Nurmagomedov  | - |  | UFC 249 | Apr 18, 2020 | - | - | Brooklyn, New York, United States |
| Sieg | 25-3 | Donald Cerrone | TKO (doctor stoppage) |  | UFC 238: Cejudo vs Moraes | Jun 08, 2019 | 2 | 5:00 | Chicago, Illinois, United States |
| Sieg | 24-3 | Anthony Pettis | TKO (Corner Stoppage) |  | UFC 229: Khabib vs McGregor | Oct 06, 2018 | 2 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 23-3 | Kevin Lee | Submission (triangle choke) | | UFC 216: Ferguson vs Lee | Oct 07, 2017 | 3 | 4:02 | Las Vegas, Nevada, United States |
| Cancelled Bout | | Khabib Nurmagomedov | - |  | UFC 209: Woodley vs. Thompson 2 | Mar 04, 2017 | - | - | Las Vegas, Nevada, United States |
| Sieg | 22-3 | Rafael dos Anjos | Decision (unanimous) |  | UFC Fight Night 98: Dos Anjos vs Ferguson | Nov 05, 2016 | 5 | 5:00 | Mexico City, Mexico |
| Sieg | 21-3 | Landon Vannata | Submission (D'Arce choke) | | UFC Fight Night 91: McDonald vs Lineker | Jul 13, 2016 | 2 | 2:22 | Sioux Falls, South Dakota, United States |
| Cancelled Bout | | Khabib Nurmagomedov | - |  | UFC on FOX 19 | Apr 16, 2016 | - | - | Tampa, Florida, United States |
| Cancelled Bout | | Khabib Nurmagomedov | - |  | TUF 22 Finale | Dec 11, 2015 | - | - | Las Vegas, United States |
| Sieg | 20-3 | Edson Barboza | Submission (D'Arce choke) |  | UFC: The Ultimate Fighter 22 Finale | Dec 11, 2015 | 2 | 2:54 | Las Vegas, United States |
| Sieg | 19-3 | Josh Thomson | Decision (Unanimous) | | UFC Fight Night: Mir vs Duffee | Jul 15, 2015 | 3 | 5:00 | San Diego, United States |
| Sieg | 18-3 | Gleison Tibau | Submission (rear-naked choke) |  | UFC 184 | Feb 28, 2015 | 1 | 2:37 | Los Angeles, California, United States |
| Sieg | 17-3 | Abel Trujillo | Submission (rear-naked choke) | | UFC 181 | Dec 06, 2014 | 2 | 4:19 | Las Vegas, Nevada, United States |
| Sieg | 16-3 | Danny Castillo | Decision (split) | | UFC 177 | Aug 30, 2014 | 3 | 5:00 | Sacramento, California, United States |
| Sieg | 15-3 | Katsunori Kikuno | KO (punch) | | UFC 173 | May 24, 2014 | 1 | 4:06 | Las Vegas, Nevada, United States |
| Sieg | 14-3 | Mike Rio | Submission (D'Arce choke) | | UFC 166 | Oct 19, 2013 | 1 | 1:52 | Houston, Texas, United States |
| Niederlage | 13-3 | Michael Johnson | Decision (unanimous) | | UFC on Fox: Diaz vs. Miller | May 05, 2012 | 3 | 5:00 | East Rutherford, New Jersey, United States |
| Sieg | 13-2 | Yves Edwards | Decision (unanimous) | | The Ultimate Fighter: Team Bisping vs. Team Miller Finale | Dec 03, 2011 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 12-2 | Aaron Riley | TKO (doctor stoppage) | | UFC 135 | Sep 24, 2011 | 1 | 5:00 | Denver, Colorado, United States |
| Sieg | 11-2 | Ramsey Nijem | KO (punches) | | The Ultimate Fighter: Team Lesnar vs. Team dos Santos Finale | Jun 04, 2011 | 1 | 3:54 | Las Vegas, Nevada, United States |
| Sieg | 10-2 | Brock Jardine | TKO (punches) | | PureCombat 12: Champions for Children | Sep 25, 2010 | 4 | 2:35 | Clovis, California, United States |
| Sieg | 9-2 | David Gardner | TKO (punches) | | CA Fight Syndicate: Battle of the 805 | Mar 26, 2010 | 2 | 0:27 | Ventura, California, United States |
| Sieg | 8-2 | Chris Kennedy | TKO (doctor stoppage) | | NFAMMA: Resurrection | Dec 18, 2009 | 1 | 2:29 | Ventura, California, United States |
| Niederlage | 7-2 | Jamie Toney | Technical Submission (triangle choke) | | NFAMMA: MMA at the Hyatt 3 | Oct 16, 2009 | 1 | 2:15 | Westlake Village, California, United States |
| Sieg | 7-1 | James Fanshier | Decision (unanimous) | | Rebel Fighter | Jul 17, 2009 | 3 | 5:00 | Placerville, California, United States |
| Sieg | 6-1 | Devin Benjamin | TKO (punches and elbows) | | NFAMMA: MMA at the Hyatt II | May 28, 2009 | 1 | 0:51 | Westlake Village, California, United States |
| Sieg | 5-1 | Daniel Hernandez | TKO (punches) | | NFAMMA: Riot at the Hyatt | Mar 05, 2009 | 1 | 2:22 | Westlake Village, California, United States |
| Niederlage | 4-1 | Karen Darabedyan | Decision (unanimous) | | All Star Boxing – Caged in the Cannon | Feb 06, 2009 | 3 | 3:00 | Montebello, California, United States |
| Sieg | 4-0 | Frank Park | Submission (mounted triangle choke) | | Long Beach Fight Night 3 | Jan 04, 2009 | 1 | 2:43 | Long Beach, California, United States |
| Sieg | 3-0 | Joe Schilling | Submission (Von Flue choke) | | Total Fighting Alliance 12 | Sep 13, 2008 | 2 | 2:12 | Long Beach, California, United States |
| Sieg | 2-0 | Brandon Adams | TKO (punches) | | TFA 11: Pounding at the Pyramid | Jul 12, 2008 | 2 | 2:18 | Long Beach, California, United States |
| Sieg | 1-0 | Steve Avalos | Submission (punches) | | CXF: Anarchy at the Arena | Apr 12, 2008 | 2 | 1:25 | Upland, California, United States |
