| Niederlage | 21-4 (1) | Mark Hunt  | KO (punch) |  | UFC 127: Penn vs Fitch | Feb 27, 2011 | 2 | 1:41 | Sydney, Australia  |
| Niederlage | 21-3 (1) | Brendan Schaub  | TKO (punches) |  | UFC 116 | Jul 03, 2010 | 1 | 1:07 | Las Vegas, United States |
| Sieg | 21-2 (1) | Tim Hague  | Decision (majority) |  | UFC 109 | Feb 06, 2010 | 3 | 5:00 | Las Vegas, United States |
| Niederlage | 20-2 (1) | Gabriel Gonzaga  | TKO (punches) |  | UFC 102 | Aug 29, 2009 | 1 | 2:27 | Portland, United States |
| Sieg | 20-1 (1) | Jamie Klair | TKO (punches) | | SNMMA: Extreme Beatdown | Apr 11, 2009 | 1 | 2:19 | Phoenix, Arizona, United States |
| Sieg | 19-1 (1) | Branden Lee Hinkle | TKO (punches) | | SNMMA: Beatdown at 4 Bears | Mar 21, 2009 | 4 | 4:43 | North Dakota, United States |
| Sieg | 18-1 (1) | Tony Mendoza | Submission (armbar) | | Max Fights 4 | Jul 19, 2008 | 1 | 2:43 | North Dakota, United States |
| Sieg | 17-1 (1) | Alexey Oleinik  | Decision (unanimous) | | YAMMA Pit Fighting | Apr 11, 2008 | 1 | 5:00 | Atlantic City, United States |
| Niederlage | 16-1 (1) | Travis Wiuff | Decision (unanimous) | | YAMMA Pit Fighting | Apr 11, 2008 | 3 | 5:00 | Atlantic City, United States |
| Sieg | 16-0 (1) | Tony Sylvester | Decision (unanimous) | | YAMMA Pit Fighting | Apr 11, 2008 | 1 | 5:00 | Atlantic City, United States |
| Sieg | 15-0 (1) | Travis Fulton | Decision (unanimous) | | Max Fights 2 | Jan 26, 2008 | 3 | 5:00 | Fargo, United States |
| Sieg | 14-0 (1) | Jimmy Ambriz | Submission (rear naked choke) | | Extreme Challenge 85 | Oct 06, 2007 | 1 | 4:43 | Bismarck, United States |
| Sieg | 13-0 (1) | Matt Eckerle | TKO (punches) | | DFC 9: Dakota vs. the World | Mar 24, 2007 | 1 | 2:17 | Grand Forks, United States |
| Sieg | 12-0 (1) | Chuck Grigsby | TKO (punches) | | DFC 8: Proving Grounds | Dec 02, 2006 | 1 | 3:49 | North Dakota, United States |
| Sieg | 11-0 (1) | Demian Decorah | TKO (punches) | | DFC 7: Revolution | Oct 07, 2006 | 1 | 4:24 | North Dakota, United States |
| NC | 10-0 (1) | Josh Hendricks | No Contest - Overturned by commission | | Fightfest 2 | Apr 14, 2006 | 1 | N/A | Canton, Ohio, United States |
| Sieg | 10-0 | Ed Myers | TKO (punches) | | Royce Gracie Fightfest 1 | Dec 09, 2005 | 1 | 1:05 | Evansville, United States |
| Sieg | 9-0 | Jim Dobson | TKO (punches) | | DFC 5: Legends of the Falls | Aug 13, 2005 | 1 | 0:55 | Thief River Falls, United States |
| Sieg | 8-0 | Matt Lafromboise | Submission (punches) | | NFA: Last Dam Fights | Jun 30, 2005 | 1 | 1:44 | North Dakota, United States |
| Sieg | 7-0 | Chris Clark | Submission (punches) | | DFC 4: Nowhere to Run | Jun 04, 2005 | 1 | 1:06 | North Dakota, United States |
| Sieg | 6-0 | Jason Miller | Submission (punches) | | NFA: Throwdown in Jamestown 2 | May 20, 2005 | 1 | 0:18 | North Dakota, United States |
| Sieg | 5-0 | Karl Knothe | Submission (rear-naked choke) | | Cage Fighting Xtreme 3 | Apr 23, 2005 | 2 | N/A | Minnesota, United States |
| Sieg | 4-0 | Marc Zee | TKO (punches) | | DFC 3 - Submission Impossible | Apr 09, 2005 | 1 | 2:25 | North Dakota, United States |
| Sieg | 3-0 | Noah Inhofer | TKO (punches) | | DFC 2 - Reloaded | Sep 25, 2004 | 1 | 2:02 | North Dakota, United States |
| Sieg | 2-0 | Krzysztof Soszynski  | Decision (unanimous) | | NFA: Title Trials | Jun 12, 2004 | 3 | 3:00 | Minnesota, United States |
| Sieg | 1-0 | Sean Cooke | Submission (choke) | | Dakota Fighting Championships 1 | Apr 17, 2004 | 1 | 0:28 | North Dakota, United States |
