| Niederlage | 31-15 | Bryan Barberena  | TKO (Punches) |  | UFC Fight Night 135: Gaethje vs Vick | Aug 25, 2018 | 1 | 1:26 | Lincoln, Nebraska, United States |
| Niederlage | 31-14 | Ben Saunders | KO (Knee to the Body) |  | UFC Fight Night 131: Rivera vs Moraes | Jun 01, 2018 | 1 | 1:56 | Utica, New York, United States |
| Niederlage | 31-13 | Mike Perry | KO (elbow) |  | UFC Fight Night 108: Swanson vs Lobov | Apr 22, 2017 | 2 | 1:05 | Nashville, Tennessee, United States |
| Niederlage | 31-12 | Jorge Masvidal | TKO (toe injury) |  | UFC: The Ultimate Fighter 24 Finale | Dec 03, 2016 | 1 | 4:05 | Las Vegas, Nevada, United States |
| Sieg | 31-11 | Matt Brown | TKO (Kick to the Body and Punches) |  | UFC 201: Lawler vs Woodley | Jul 30, 2016 | 1 | 1:46 | Atlanta, Georgia, United States |
| Niederlage | 30-11 | Tarec Saffiedine  | Decision (unanimous) |  | UFC on FOX 18: Johnson vs Bader | Jan 30, 2016 | 3 | 5:00 | Newark, United States |
| Niederlage | 30-10 | Stephen Thompson | KO (spinning hook kick) |  | The Ultimate Fighter: American Top Team vs. Blackzilians Finale | Jul 12, 2015 | 1 | 4:29 | Las Vegas, Nevada, United States |
| Sieg | 30-9 | Josh Koscheck | Submission (north-south choke) |  | UFC 184 | Feb 28, 2015 | 2 | 4:20 | Los Angeles, California, United States |
| Niederlage | 29-9 | Kelvin Gastelum | Submission (rear-naked choke) |  | UFC 180 | Nov 15, 2014 | 1 | 4:46 | Mexico City, Mexico |
| Niederlage | 29-8 | Robbie Lawler | TKO (knee and punches) |  | UFC 173 | May 24, 2014 | 3 | 3:06 | Las Vegas, Nevada, United States |
| Niederlage | 29-7 | Rory MacDonald  | Decision (unanimous) |  | UFC on Fox: Johnson vs. Moraga | Jul 27, 2013 | 3 | 5:00 | Seattle, Washington, US |
| Sieg | 29-6 | Nate Marquardt | KO (punches) |  | UFC 158: St. Pierre vs Diaz | Mar 16, 2013 | 1 | 3:00 | Montreal, Quebec, Canada |
| Sieg | 28-6 | Jay Hieron | Decision (unanimous) | | UFC on FX: Browne vs. Bigfoot | Oct 05, 2012 | 3 | 5:00 | Minneapolis, Minnesota, United States |
| Niederlage | 27-6 | Martin Kampmann  | TKO (knee) | | The Ultimate FF 15 | Jun 01, 2012 | 2 | 1:40 | Las Vegas, United States |
| Sieg | 27-5 | Diego Sanchez | Decision (unanimous) | | UFC on Fuel TV: Sanchez vs. Ellenberger | Feb 15, 2012 | 3 | 5:00 | Omaha, Nebraska, United States |
| Sieg | 26-5 | Jake Shields | KO (knee & punches) | | UFC Fight Night: Shields vs. Ellenberger | Sep 17, 2011 | 1 | 0:53 | New Orleans, Louisiana, United States |
| Sieg | 25-5 | Sean Pierson | KO (punches) | | UFC 129 | Apr 30, 2011 | 1 | 2:42 | Toronto, Ontario, Canada |
| Sieg | 24-5 | Carlos Eduardo Rocha | Decision (split) | | UFC 126 | Feb 05, 2011 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 23-5 | John Howard | TKO (doctor stoppage) | | UFC Live: Jones vs. Matyushenko | Aug 01, 2010 | 3 | 2:21 | San Diego, California, United States |
| Sieg | 22-5 | Mike Pyle | TKO (punches) | | UFC 108 | Jan 02, 2010 | 2 | 0:22 | Las Vegas, Nevada, United States |
| Niederlage | 21-5 | Carlos Condit | Decision (split) |  | UFC Fight Night: Diaz vs. Guillard | Sep 16, 2009 | 3 | 5:00 | Oklahoma, United States |
| Sieg | 21-4 | Marcelo Alfaya  | KO (punch) | | Bellator 11 | Jun 12, 2009 | 1 | 0:42 | Uncasville, Connecticut, United States |
| Sieg | 20-4 | Brendan Seguin | Decision (unanimous) | | VFC 27: Mayhem | May 01, 2009 | 3 | 5:00 | Council Bluffs, Iowa, United States |
| Sieg | 19-4 | Doo Won Seo | TKO (doctor stoppage) | | M-1 Challenge 6: Korea | Aug 29, 2008 | 2 | 3:04 | Seoul, South Korea |
| Sieg | 18-4 | Farouk Lakebir | Decision (majority) | | M-1 Challenge 5: Japan | Jul 17, 2008 | 2 | 5:00 | Tokyo, Japan |
| Niederlage | 17-4 | Rick Story | Decision (unanimous) | | SF 23: Heated Rivals | Jun 20, 2008 | 3 | 5:00 | Portland, Oregon, United States |
| Sieg | 17-3 | Pat Healy | Decision (unanimous) | | IFL: Las Vegas | Feb 29, 2008 | 3 | 4:00 | Las Vegas, Nevada, United States |
| Sieg | 16-3 | José Landi-Jons | KO (punch) | | EFC 5: Revolution | Nov 03, 2007 | 1 | 0:09 | Prince George, British Columbia, Canada |
| Niederlage | 15-3 | Delson Heleno | Submission (armbar) | | IFL: 2007 Team Championship Final | Sep 20, 2007 | 2 | 3:45 | Hollywood, Florida, United States |
| Sieg | 15-2 | Zach Light | TKO (punches) | | Bodog Fight: Costa Rica Combat | Feb 16, 2007 | 1 | 3:51 | San José, Costa Rica |
| Sieg | 14-2 | Ben Uker | TKO (punches) | | IFL : Championship Final | Dec 29, 2006 | 2 | 1:44 | Uncasville, Connecticut, United States |
| Niederlage | 13-2 | Derrick Noble | Decision (unanimous) | | Bodog Fight: Clash of the Nations | Dec 16, 2006 | 3 | 5:00 | St. Petersburg, Russia |
| Sieg | 13-1 | Ryan Stout | TKO (punches) | | IFC: Rumble on the River 2 | Nov 10, 2006 | 2 | 4:06 | Kearney, Nebraska, United States |
| Niederlage | 12-1 | Jay Hieron | Decision (unanimous) | | IFL: Championship 2006 | Jun 03, 2006 | 3 | 4:00 | Atlantic City, New Jersey, United States |
| Sieg | 12-0 | Gil Castillo | TKO (punches) | | IFC: Caged Combat | Apr 01, 2006 | 1 | 1:30 | Sacramento, California, United States |
| Sieg | 11-0 | Kenneth Allen | Submission (armbar) | | IFC: Rumble on the River | Mar 11, 2006 | 1 | N/A | Kearney, Nebraska, United States |
| Sieg | 10-0 | Mark Bear | TKO (doctor stoppage) | | VFC 12: Warpath | Feb 25, 2006 | 2 | N/A | Council Bluffs, Iowa, United States |
| Sieg | 9-0 | LaVerne Clark | Submission (triangle choke) | | KOTC 64: Raging Bull | Dec 16, 2005 | 2 | 3:06 | Cleveland, Ohio, United States |
| Sieg | 8-0 | Sean Huffman | Submission (punches) | | VFC 11: Demolition | Dec 03, 2005 | 3 | 0:22 | Council Bluffs, Iowa, United States |
| Sieg | 7-0 | Brian Daley | TKO (punches) | | AFC 4: New Hitter | Nov 18, 2005 | 1 | 1:31 | Omaha, Nebraska, United States |
| Sieg | 6-0 | Evan Boemer | KO (punches) | | Extreme Challenge 65 | Oct 21, 2005 | 1 | 0:48 | Medina, Minnesota, United States |
| Sieg | 5-0 | Brent Shepard | KO (punch) | | All Fighting Championships 3 | Sep 24, 2005 | 1 | N/A | Omaha, Nebraska, United States |
| Sieg | 4-0 | Deryck Ripley | Submission (punches) | | VFC 10: Championship X | Aug 06, 2005 | 1 | 1:41 | Council Bluffs, Iowa, United States |
| Sieg | 3-0 | Brad Fox | TKO (punches) | | ROF 17: Unstoppable | Jun 18, 2005 | 2 | 2:15 | Castle Rock, Colorado, United States |
| Sieg | 2-0 | Cory Simpson | Submission (choke) | | XKK: Des Moines | May 20, 2005 | 3 | N/A | Des Moines, Iowa, United States |
| Sieg | 1-0 | Cameron Wells | TKO (punches) | | AFC 1: Takedown | Apr 09, 2005 | 1 | N/A | Omaha, Nebraska, United States |
