The UFC 100 weigh-ins took place at the Mandalay Bay Events Center in Las Vegas, Nevada.

Here are the official weigh-in results:

MAIN CARD:

Heavyweight Title Unification Match – Brock Lesnar (Champion) (265) vs. Frank Mir (Interim Champion) (245)
Welterweight Title Match – Georges St. Pierre (Champion) (170) vs. Thiago Alves (170)
Dan Henderson (185) vs. Michael Bisping (186)
Yoshihiro Akiyama (155) vs. Alan Belcher (155)
Jon Fitch (170) vs. Paulo Thiago (170)

PRELIMINARY CARD:

Mark Coleman (205) vs. Stephan Bonnar (205)
Mac Danzig (154) vs. Jim Miller (155)
Jon Jones (206) vs. Jake O’Brien (206)
Dong Hyun Kim (171) vs. T.J. Grant (170)
C.B. Dollaway (186) vs. Tom Lawlor (184)
Matt Grice (155) vs. Shannon Gugerty (156)

Related posts:

1. UFC 100 Preview
2. Strikeforce: Lawler vs. Shields Official Weigh-In Results
3. UFC 99: The Comeback Official Weigh-In Results
4. WEC 41: Brown vs. Faber 2 Official Weigh-In Results
5. Strikeforce Challengers: Villasenor vs. Cyborg Official Weigh-In Results