| Niederlage | 13-7-1 (1) | Nik Lentz  | TKO (Head Kick and Punches) |  | UFC 229: Khabib vs McGregor | Oct 06, 2018 | 2 | 1:19 | Las Vegas, Nevada, United States |
| Sieg | 13-6-1 (1) | Teruto Ishihara  | Decision (Unanimous) |  | The Ultimate Fighter 25 Finale | Jul 07, 2017 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 12-6-1 (1) | Ryan Hall | Decision (unanimous) |  | UFC: The Ultimate Fighter 24 Finale | Dec 03, 2016 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 12-5-1 (1) | Fernando Bruno  | Decision (unanimous) |  | The Ultimate Fighter 23 Finale | Jul 08, 2016 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 11-5-1 (1) | Alexander Yakovlev  | Decision (unanimous) |  | UFC Fight Night: Mendes vs Lamas | Apr 04, 2015 | 3 | 5:00 | Fairfax, Virginia, United States |
| Niederlage | 11-4-1 (1) | Ross Pearson  | TKO (punches) |  | UFC Fight Night: Bader vs St.Preux | Aug 16, 2014 | 2 | 1:35 | Bangor, Maine, United States |
| Niederlage | 11-3-1 (1) | Nate Diaz | TKO (punches) |  | UFC - The Ultimate Fighter 18 Finale | Nov 30, 2013 | 1 | 2:38 | Las Vegas, United States |
| Niederlage | 11-2-1 (1) | T.J. Grant | TKO (punches) |  | UFC 160: Velasquez vs Silva 2 | May 25, 2013 | 1 | 2:07 | Las Vegas, United States |
| Sieg | 11-1-1 (1) | Clay Guida | Decision (split) |  | UFC on FX 4 | Jun 22, 2012 | 5 | 5:00 | Atlantic City, United States |
| Niederlage | 10-1-1 (1) | Frankie Edgar | KO (punches) |  | UFC 136 | Oct 08, 2011 | 4 | 3:54 | Houston, United States |
| Unentschieden | 10-0-1 (1) | Frankie Edgar | Draw (split) |  | UFC 125 | Jan 01, 2011 | 5 | 5:00 | Las Vegas, United States |
| Sieg | 10-0 (1) | Kenny Florian | Decision (unanimous) |  | UFC 118 | Aug 28, 2010 | 3 | 5:00 | Massachusetts, United States |
| Sieg | 9-0 (1) | Nate Diaz | Decision (split) |  | UFC Fight Night: Maynard vs Diaz | Jan 11, 2010 | 3 | 5:00 | Virginia, United States |
| Sieg | 8-0 (1) | Roger Huerta | Decision (split) |  | UFC Fight Night: Diaz vs. Guillard | Sep 16, 2009 | 3 | 5:00 | Oklahoma, United States |
| Sieg | 7-0 (1) | Jim Miller | Decision (unanimous) | | UFC 96 | Mar 07, 2009 | 3 | 5:00 | Columbus, United States |
| Sieg | 6-0 (1) | Rich Clementi | Decision (unanimous) | | UFC 90 | Oct 25, 2008 | 3 | 5:00 | Illinois, United States |
| Sieg | 5-0 (1) | Frankie Edgar | Decision (unanimous) | | UFC Fight Night: Florian vs. Lauzon | Apr 02, 2008 | 3 | 5:00 | Colorado, United States |
| Sieg | 4-0 (1) | Dennis Siver  | Decision (unanimous) |  | UFC Fight Night: Swick vs Burkman | Jan 23, 2008 | 3 | 5:00 | Las Vegas, United States |
| Sieg | 3-0 (1) | Joe Veres | KO (punch) | | UFC Fight Night: Thomas vs Florian | Sep 19, 2007 | 1 | 0:09 | Las Vegas, United States |
| NC | 2-0 (1) | Rob Emerson | No Contest (both fighters ko'd) | | The Ultimate Fighter 5 Finale | Jun 23, 2007 | 2 | 0:39 | Las Vegas, United States |
| Sieg | 2-0 | Brent Weedman | Decision (unanimous) | | WEF: Orleans Arena | Jun 10, 2006 | 3 | 5:00 | Las Vegas, United States |
| Sieg | 1-0 | Joshua Powell | TKO (punches) | | Title Fighting Championships 1 | Apr 21, 2006 | 1 | 2:56 | Iowa, United States |
