Goals from Albert Rusnak and Aaron Maund helped Real Salt Lake come back against NYCFC on a snowy night at Rio Tinto Stadium.
Gerso netted three goals in a 13-minute span to lift Sporting KC to a 3-0 victory over Seattle Sounders.
The Chicago Fire were in dominant form from start to finish against a tepid Rapid's, and punished by lethal Nemanja Nikolic.
Major League Soccer: Aaron Maund (51') Real Salt Lake 2-1 NYCFC
Major League Soccer: Nemanja Nikolic (74') Chicago Fire 3-0 Colorado Rapids
Major League Soccer: Gerso (69') Sporting KC 3-0 Seattle Sounders