UFC 100
Under card
Lightweight bout: Matt Grice vs. Shannon Gugerty
Gugerty defeated Grice via submission (guillotine choke) at 2:36 of round 1.
Middleweight bout: C.B. Dollaway vs. Tom Lawlor
Lawlor defeated Dollaway via submission (guillotine choke) at 0:55 of round 1.
Welterweight bout: Dong Hyun Kim vs. TJ Grant
Kim defeated Grant via unanimous decision (30-26, 30-26, 30-26).
Light Heavyweight bout: Jon Jones vs. Jake O'Brien
Jones defeated O'Brien via submission (guillotine choke) at 2:43 of round 2.
Lightweight bout: Mac Danzig vs. Jim Miller
Miller defeated Danzig via unanimous decision (30-27, 30-27, 30-27).
Light Heavyweight bout: Mark Coleman vs. Stephan Bonnar
Coleman defeated Bonnar via unanimous decision [29-28, 29-28, 29-28].
Main card
Middleweight bout: Yoshihiro Akiyama vs. Alan Belcher
Akiyama defeated Belcher via split decision [30-27, 28-29, 29-28].
Middleweight bout: Dan Henderson vs. Michael Bisping
Henderson defeated Bisping via KO (punch) at 3:20 of round 2.
Welterweight Championship bout: Georges St-Pierre vs. Thiago Alves
St-Pierre defeated Alves via unanimous decision (50-45, 50-44, 50-45) to retain the UFC Welterweight championship.
Heavyweight Championship unification bout: Brock Lesnar vs. Frank Mir
Lesnar defeated Mir via TKO[12] (punches) at 1:48 of round 2 to become the Undisputed UFC Heavyweight champion.
Welterweight bout: Jon Fitch vs. Paulo Thiago
Fitch defeated Thiago via unanimous decision [30-27, 29-28, 29-28].