Sieg | 2-0 | Marcin Held | Decision (Unanimous) | | PFL 2021 #4 | Jun 10, 2021 | 3 | 5:00 | Atlantic City, New Jersey, United States |
| | Gilbert Burns | - | | UFC on FOX 28: Stephens vs Emmett | Feb 24, 2018 | - | - | Orlando, Florida, United States |
Sieg | 1-0 | Drew Dober | Submission (Rear-Naked Choke) | | UFC 206: Holloway vs Pettis | Dec 10, 2016 | 2 | 2:57 | Toronto, Ontario, Canada |