WASHINGTON - Chris Pontius scored twice, and D.C. United snapped a seven-game home winless streak with a 4-0 victory over the Vancouver Whitecaps on Saturday night.
Andy Najar and Stephen King also scored for United, and Joe Willis made six saves for a shutout in his debut.
United (7-6-9) was 0-2-5 at RFK Stadium since beating Seattle 2-1 on May 4.
The Whitecaps (3-12-9) sank to 0-9-4 on the road in their inaugural season.
"I am very disappointed," said Whitecaps head coach Tom Soehn. "I think we spent a lot of time this week talking about the job we did against Chicago at home and how we did the little things.
"Last weekend, we worked, we competed and did all the things that are even required more on the road. Tonight, I thought we let ourselves down in that category."
Vancouver nearly took the lead five minutes before halftime, when Willis dove right to push Camilo's 25-yard free kick onto the crossbar, then blocked two close-range rebound attempts.
Pontius put United ahead in first-half stoppage time when he slid to redirect Canadian Dwayne De Rosario's cross from close range.
Najar made it 2-0 three minutes after halftime when he reached Santino Quaranta's through ball down the right and drove a low finish off goalkeeper Jay Nolly's leg and into the net.
Pontius scored his second in the 70th minute on a rebound of King's deflected effort, and King capped the scoring 11 minutes later.