Yohei Takaoka finished with five saves for Vancouver to offset Stefan Frei's league-leading 13th clean sheet of the season as the Whitecaps played the Seattle Sounders to a scoreless draw.
Cristian Roldan scored a goal that help Seattle Sounders clinched a spot in the postseason and snapped a four-match winless streak at home with a 2-1 victory over the Los Angeles Galaxy.
Defender Yeimar Andrade gave Seattle a first-half lead, but his own-goal early in the second half helped Minnesota United gain a 1-1 draw with the Sounders.
Cristian Espinoza scored on a first-half penalty kick and assisted on a second-half goal by Miguel Trauco to lead the San Jose Earthquakes to a 2-0 victory over the Seattle Sounders.
Pedro Vite scored just before halftime and the Vancouver Whitecaps used an own-goal by Seattle goalkeeper Stefan Frei in the second half to post a 2-0 victory over the Sounders.
Erik Thommy had a goal and an assist, Alan Pulido scored his first goal in nearly two years and Sporting Kansas City stunned the Western Conference-leading Seattle Sounders with a 2-1 victory.
Brenner Souza da Silva scored in the 63rd minute and Roman Celentano made it stand up as FC Cincinnati blanked the Seattle Sounders 1-0 on Saturday night.
Jordan Morris scored his league-leading third goal of the season and Stefan Frei posted his second straight clean sheet to spark the Seattle Sounders to a 2--0 victory over Real Salt Lake.
Brenner scored in the first half to give FC Cincinnati the lead, but Fredy Montero equalized for Seattle in the second half of a 1-1 draw that kept the Sounders slim playoff hopes alive.