The Vancouver Whitecaps claimed a 2-1 win over the Portland Timbers after Christian Bolanos' shot slipped through the legs of goalkeeper Jake Gleeson on Saturday.
Portland took the lead in the 34th minute when Darlington Nagbe put a shot past Vancouver goalkeeper David Ousted and Nat Borchers tapped it over the line.
Vancounver were back level when Masato Kudo beat Gleeson at his near post on the hour mark for his first MLS goal.
Gleeson made 11 saves but was at fault on the winner as Bolanos' soft chip slipped through his legs as he bent to pick it up in the 66th minute.