UFC 109: Relentless
- PromotionUltimate Fighting Championship
- VenueMandalay Bay Events Center
- LocationLas Vegas, Nevada, United States
- Number of bouts11
Main Card
Randy Couture
17-10-0
Heavyweight bout
Main Event | 3 x 5
VS
Submission, Rear Naked Choke | R2 · 1:09Mark Coleman
16-9-0
Heavyweight bout
Main Event
3 x 5
Randy
Couture
17-10-0
Mark
Coleman
16-9-0
Submission, Rear Naked Choke
R2 · 1:09Middleweight bout
Co-Main Event
3 x 5
Chael
Sonnen
24-10-1
Nate
Marquardt
29-8-2
Decision
Welterweight bout
3 x 5
Paulo
Thiago
12-1-0
Mike
Swick
14-3-0
Submission, Brabo Choke
R2 · 1:54Middleweight bout
3 x 5
Demian
Maia
11-1-0
Dan
Miller
11-2-0
Decision
Welterweight bout
3 x 5
Matt
Serra
10-6-0
Frank
Trigg
19-7-0
KO/TKO, Punches
R1 · 2:23Preliminary Card
Lightweight bout
3 x 5
Mac
Danzig
18-7-1
Justin
Buchholz
9-4-0
Decision
Lightweight bout
3 x 5
Melvin
Guillard
24-8-2
Ronys
Torres
14-1-0
Decision
Lightweight bout
3 x 5
Rob
Emerson
9-8-0
Phillipe
Nover
5-2-1
Decision
Heavyweight bout
3 x 5
Chris
Tuchscherer
20-2-0
Tim
Hague
10-2-0
Majority Decision
Heavyweight bout
3 x 5
Joey
Beltran
10-3-0
Rolles
Gracie
3-0-0
KO/TKO, Punches
R2 · 1:31