B.J. Penn is an mixed martial arts fighter for the Ultimate Fighting Championship (UFC). On January 31, 2009, Penn challenged Georges St. Pierre in UFC 94 for the welterweight championship. Penn lost the bout in the fourth round with a TKO.

B.J. Penn became an accomplished Brazilian Jiu-Jitsu fighter, winning a gold medal in the black belt division of the Mundial World Championships in 2000. Penn joined the UFC in 2001, competing in the lightweight division.

In 2004, Penn moved up to the welterweight division to challenge champion Matt Hughes. Hughes had already defeated every other welterweight opponent before he defended his title against Penn. Despite being a heavy underdog, Penn defeated Hughes in the first round to win the UFC welterweight title.

After defeating Hughes, Penn signed with K-1 and was stripped of his title by the UFC. However, Penn returned to the UFC in 2006 as a top welterweight contender.

• Wins: 13
  • By knockout: 5
  • By submission: 5
  • By decision: 3
• Losses: 5
  • By knockout: 2
  • By submission: 0
  • By decision: 3
• Draws: 1SHERDOG: B.J. Penn Stats

• • Height: 5 ft. 9 in.
  • Weight: 170 lbs.
  • MMA Record 11-4-1 (4 KO's)

• December 12, 1978: Born
• 1997: Began Training Under Ralph Gracie
• 2001: Defeated Joey Gilbert at UFC 31
• 2001: Defeated Din Thomas at UFC 32
• 2002: Lost to Jens Pulver for the UFC Light Heavyweight Championship at UFC 35
• 2002: Defeated Matt Serra at UFC 39
• 2003: Went to a Draw Against Carl Uno for the UFC Light Heavyweight Championship at UFC 41
• 2004: Defeated Matt Hughes for the UFC Welterweight Championship at UFC 46
• 2004: Is Stripped of the UFC Welterweight Title After he Signed With Another Company
• 2005: Was arrested Outside a Nightclub in Hawaii for Hitting an Officer and Received one Year Probation
• 2006: Returned to the UFC and Lost to Georges St. Pierre at UFC 58
• 2006: Lost to Matt Hughes for the UFC Welterweight Championship at UFC 63
• 2007: The Ultimate Fighter: The Ultimate Fighter | IMDb | Wikipedia | Mahalo
• 2007: Defeated Jens Pulver at the The Ultimate Fighter Season 5 finale