Stephan "The American Psycho" Bonnar
| First Name : | Stephan |
| Last name : | Bonnar |
| Nickname : | The American Psycho |
| Height : | 6'3" (191cm) |
| Weight : | 205 lbs (93 kg) |
| Birth Date : | 1977-04-04 |
| City : | Hammond, Illinois |
| Country : | USA |
| Style : | Brazilian Jiu-Jitsu / Boxing |
| Record : | 13 - 7 - 0 (Wins - Losses - Draws) |
| Wins : |
2 Submission (Guillotine Choke) (15.38%) 1 Submission (Armbar) (7.69%) 1 Submission (Rear Naked Choke) (7.69%) 1 Submission (Triangle Choke) (7.69%) 2 TKO (Punches) (15.38%) 1 Submission (Rear-Naked Choke) (7.69%) 1 Subm |
| Losses : |
1 TKO (Doctor Stoppage) (14.29%) 4 Decision (Unanimous) (57.14%) 1 Decision (Majority) (14.29%) 1 TKO (Cut) (14.29%) |
| Association : | Team Sityodtong |
| Match Stats | ||||||
| Result | Opponent | Method | Event Title | Date | Round | Time |
| Win | Igor Pokrajac | Decision (Unanimous) | The Ultimate Fighter 12 Finale | Dec 5, 2010 | 3 | 5:00 |
| Win | Krzysztof Soszynski | TKO (Strikes) | UFC 116 - Lesnar vs. Carwin | Jul 3, 2010 | 2 | 3:08 |
| Lost | Krzysztof Soszynski | TKO (Cut) | UFC 110 - Nogueira vs. Velasquez | Feb 21, 2010 | 3 | 1:04 |
| Lost | Mark Coleman | Decision (Unanimous) | UFC 100 - Lesnar vs. Mir 2 | Jul 11, 2009 | 3 | 5:00 Sec |
| Lost | Jon Jones | Decision (Unanimous) | UFC 94 - St. Pierre vs. Penn 2 | Jan 31, 2009 | 3 | 5:00 Sec |
| Win | Eric Schafer | TKO (Punches) | UFC 77 - Hostile Territory | Oct 20, 2007 | 2 | 2:47 Sec |
| Win | Mike Nickels | Submission (Rear-Naked Choke) | UFC 73 - Stacked | Jul 7, 2007 | 1 | 2:14 Sec |
| Lost | Forrest Griffin | Decision (Unanimous) | UFC 62 - Liddell vs Sobral | Aug 26, 2006 | 3 | 5:00 Sec |
| Lost | Rashad Evans | Decision (Majority) | UFC - Ultimate Fight Night 5 | Jun 28, 2006 | 3 | 5:00 Sec |
| Win | Keith Jardine | Decision (Unaminous) | UFC - Ultimate Fight Night 4 | Apr 6, 2006 | 3 | 5:00 Sec |
| Win | James Irvin | Submission (Kimura) | UFC - Ultimate Fight Night 3 | Jan 16, 2006 | 1 | 4:30 Sec |
| Win | Sam Hoger | Decision (Unaminous) | UFC - Ultimate Fight Night | Aug 6, 2005 | 3 | 5:00 Sec |
| Lost | Forrest Griffin | Decision (Unanimous) | UFC - The Ultimate Fighter 1 Finale | Apr 9, 2005 | 3 | 5:00 Sec |
| Win | Sean Sallee | Submission (Triangle Choke) | IHC 7 - The Crucible | Jun 5, 2004 | 1 | 2:28 Sec |
| Win | William Hill | TKO (Punches) | TFC 1 - Total Fight Challenge 1 | Apr 24, 2004 | 1 | |
| Win | Brad Lynde | Submission (Rear Naked Choke) | IHC 6 - Inferno | Nov 22, 2003 | 1 | 4:10 Sec |
| Lost | Lyoto Machida | TKO (Doctor Stoppage) | JF 1 - Jungle Fight 1 | Sep 13, 2003 | 1 | 4:21 Sec |
| Win | Jay Massey | Submission (Guillotine Choke) | UA 1 - The Genesis | Jan 27, 2002 | 1 | 1:09 Sec |
| Win | Josh Kruger | Submission (Armbar) | IHC 3 - Exodus | Nov 10, 2001 | 1 | 2:55 Sec |
| Win | Brian Ebersole | Submission (Guillotine Choke) | IHC 3 - Exodus | Nov 10, 2001 | 1 | 0:51 Sec |