Stephan Patrick "The American Psycho" Bonnar (born April 4, 1977 in Hammond, Indiana) is an American mixed martial arts fighter. He is best known for his appearance on season 1 of The Ultimate Fighter on Spike TV, a reality show which showcases mixed martial arts. Bonnar currently trains at the Xtreme Couture gym in Las Vegas.
Stephan trained in Brazilian Jiu-Jitsu with the legendary Carlson Gracie, under whom he received his purple belt before Carlson's passing. This experience has led to most of his bouts ending by way of submission. However, he is also a former Chicago Golden Gloves boxer and has trained in Muay Thai during several trips to Thailand. He is also the Ironheart Crown Light Heavyweight champion and Total Fight Challenge Light Heavyweight champion 2002-04.
After his loss to Griffin, Bonnar became the staple of the regular UFC Ultimate Fight Night shows at the Hard Rock Hotel and Casino in Las Vegas, defeating such notables as Sam Hoger, James Irvin and Keith Jardine before succumbing to Rashad Evans by way of majority decision. More recently, Bonnar lost a unanimous decision against Forrest Griffin in the long-anticipated rematch at UFC 62.
Bonnar is a fan of the rock band The Who and uses their song "Eminence Front" as his entrance music to UFC matches.
|align="center" colspan=8|11 Wins 4 Losses|
|10/20/2007||Win||Eric Schafer||UFC 77: Hostile Territory||TKO (Strikes)||Round 2, 2:47|
|7/7/2007||Win||Mike Nickels||UFC 73: Stacked||Submission (Rear Naked Choke)||Round 1, 2:14|
|8/26/2006||Loss||Forrest Griffin||UFC 62: Liddell vs. Sobral||Decision (Unanimous)||Round 3, 5:00||Bonnar tested positive for boldenone after the fight|
|6/28/2006||Loss||Rashad Evans||UFC Ultimate Fight Night 5||Decision (Majority)||Round 3, 5:00|
|4/6/2006||Win||Keith Jardine||UFC Ultimate Fight Night 4||Decision (Unanimous)||Round 3, 5:00|
|1/16/2006||Win||James Irvin||UFC Ultimate Fight Night 3||Submission (kimura)||Round 1, 4:30|
|8/6/2005||Win||Sam Hoger||UFC Ultimate Fight Night||Decision (Unanimous)||Round 3, 5:00|
|4/9/2005||Loss||Forrest Griffin||The Ultimate Fighter Finale||Decision (Unanimous)||Round 3, 5:00|
|6/5/2004||Win||Sean Sallee||IC 7-The Crucible||Submission (Triangle Choke)||Round 1, 2:28|
|4/24/2004||Win||William Hill||Total Fight Challenge 1||TKO||Round 1|
|11/22/2003||Win||Brad Lynde||IC 6: Inferno||Submission (Rear Naked Choke)||Round 1, 4:10|
|9/13/2003||Loss||Lyoto Machida||Jungle Fight 1||TKO (Cut)||Round 1, 4:21|
|9/7/2002||Win||Terry Martin||MFC - Maximum Fighting Challenge||Decision (Unanimous Decision)||Round 1, 10:00|
|1/27/2002||Win||Jay Massey||UA 1: The Genesis||Submission (Guillotine Choke)||Round 1, 1:09|
|11/10/2001||Win||Josh Kruger||IC 3: Exodus||Submission (Armbar)||Round 1, 2:55|
|11/10/2001||Win||Brian Ebersole||IC 3: Exodus||Submission (Guillotine Choke)||Round 1, 0:51|