Welterweight Championship bout: Georges St-Pierre defeated Thiago Alves via unanimous decision (50-45, 50-44, 50-45) to retain the UFC Welterweight championship.
UFC 100: Lesnar vs. Mir 2 – 9. Georges St. Pierre vs. Thiago Alves

Welterweight Championship bout: Georges St-Pierre defeated Thiago Alves via unanimous decision (50-45, 50-44, 50-45) to retain the UFC Welterweight championship.
When I picked GSP via decision, I was concerned about the odds of Alves lasting all 5 rounds, but GSP's finishing rate against top competition is pretty low. He looked good here, but I don't think he'd do very well at middleweight.
R:4 A:3 S:4 T:4