|UFC 109: Relentless|
|A poster or logo for UFC 109: Relentless.|
|Promotion||Ultimate Fighting Championship|
|Date||February 6, 2010|
|Venue||Mandalay Bay Events Center|
A Middleweight Championship bout between Anderson Silva and Vitor Belfort was confirmed by UFC President Dana White, although it was contingent on Silva's successful recovery from elbow surgery. Subsequently, the fight was rescheduled due to Silva's continued slow healing from surgery. The Silva vs. Belfort bout was expected to take place at UFC 112, however Belfort was forced to withdraw from the fight and Demian Maia replaced him, after number one contender Chael Sonnen was not clear to fight.
Antônio Rogério Nogueira had to withdraw from his bout against Brandon Vera due to an ankle injury. It was announced that Vera will face future Light Heavyweight Champion Jon Jones on March 21, 2010 at UFC Live: Vera vs. Jones.
The bout between Randy Couture and Mark Coleman was originally scheduled for UFC 17 in 1998, but a Couture injury forced the cancellation of the bout. Nearly twelve years later, this bout headlined UFC 109. It marked the first time in UFC history that two Hall of Fame inductees fought in an event.
Mostapha Al-turk ran into visa issues that prevented him from making the trip to Las Vegas his fight against Rolles Gracie. Both Jon Madsen and Joey Beltran were pegged as possible late replacements to step in and fight Rolles Gracie, before Beltran got the nod as the replacement fighter against Gracie.
Fighters were awarded $60,000 bonuses.
- Fight of the Night: Nate Marquardt vs. Chael Sonnen
- Knockout of the Night: Matt Serra
- Submission of the Night: Paulo Thiago
The following is the reported payout to the fighters as reported to the Nevada State Athletic Commission. It does not include sponsor money or "locker room" bonuses often given by the UFC and also do not include the UFC's traditional "fight night" bonuses.
- Randy Couture: $250,000 (no win bonus) def. Mark Coleman: $60,000
- Chael Sonnen: $64,000 (includes $32,000 win bonus) def. Nate Marquardt: $45,000
- Paulo Thiago: $30,000 ($15,000 win bonus) def. Mike Swick: $43,000
- Demian Maia: $62,000 ($31,000 win bonus) def. Dan Miller: $15,000
- Matt Serra: $150,000 ($75,000 win bonus) def. Frank Trigg: $30,000
- Mac Danzig: $40,000 ($20,000 win bonus) def. Justin Buchholz: $8,000
- Melvin Guillard: $28,000 ($14,000 win bonus) def. Ronys Torres: $4,000
- Rob Emerson: $24,000 ($12,000 win bonus) def. Phillipe Nover: $10,000
- Phil Davis: $10,000 ($5,000 win bonus) def. Brian Stann: $17,000
- Chris Tuchscherer: $20,000 ($10,000 win bonus) def. Tim Hague: $7,000
- Joey Beltran: $12,000 ($6,000 win bonus) def. Rolles Gracie: $15,000
|Chael Sonnen||Daryle Singletary||"Too Much Fun"||Daryle Singletary|
|Dan Miller||Creedence Clearwater Revival||"Run Through the Jungle"||Cosmo's Factory|
|Demian Maia||Lobão||"Vida Bandida"||Brazil's Best|
|Frank Trigg||LL Cool J||"Mama Said Knock You Out"||Mama Said Knock You Out|
|Joey Beltran||Dr. Dre (feat. Snoop Dogg)||"Still D.R.E."||2001|
|Mark Coleman||Lil Wayne (feat. Eminem)||"Drop the World"||Rebirth|
|Matt Serra||Bill Conti||"Gonna Fly Now"||Rocky Balboa: The Best of Rocky|
|Mike Swick||2Pac||"Ambitionz Az A Ridah"||All Eyez on Me|
|Nate Marquardt||The Who||"Eminence Front"||It's Hard|
|Paulo Thiago||O Rappa||"Monstro Invisível"||O Rappa|
|Phil Davis||Young Jeezy||"Standing Ovation"||Let's Get It: Thug Motivation 101|
|Randy Couture||Ted Nugent||"Stranglehold"||Ted Nugent|
|Rolles Gracie||Charlie Brown Jr. & Marcelo D2||"Samba Makossa"||Acustico|
|Tim Hague||Guns N' Roses||"Welcome To The Jungle"||Appetite for Destruction|