The Eastern Conference-leading Kansas City made it six wins from as many games with a 1-0 victory over Real Salt Lake.

A 63rd-minute goal from Aurelien Collin was all that separated the two teams at Livestrong Sporting Park, with Real Salt Lake staying top of the Western Conference despite the loss.

Collin was left unmarked as he surged into the area to head in a Graham Zusi corner just after the hour-mark.

CJ Sapong netted just before half-time for the hosts, but he was ruled to have fouled Jamison Olave as he headed past Nick Rimando.

The New York Red Bulls slipped eight points adrift of Kansas City after playing out a 2-2 draw at home to the San Jose Earthquakes.

Kenny Cooper gave the hosts a fifth-minute lead when he beat the offside trap and finished off a pinpoint pass from Thierry Henry.

But an error in midfield cost the Red Bulls after a quarter of an hour, leading to Rafael Baca tapping in the equaliser.

They restored their advantage in the 23rd minute, as Dax McCarty volleyed in a cutback from Dane Richards.

The Earthquakes, who are second in the Western Conference, hit back again before half-time through Chris Wondolowski, who finished off a neat team move with a diving header.

Reigning champions the Los Angeles Galaxy moved off the bottom of the Western Conference after securing a come-from-behind 3-1 win against the Portland Timbers.

Former Rangers striker Kris Boyd opened the scoring in the 23rd minute for the Timbers, beating the offside trap before placing into the bottom corner.

Landon Donovan responded for Bruce Arena's men just before half-time, and they sealed the win thanks to goals from Juninho and David Beckham.

Brazilian Juninho turned Diego Chara before firing a low 25-yard drive past Troy Perkins and into the bottom corner.

Beckham completed the scoring in style, curling a brilliant 30-yard strike into the top corner, leaving Perkins with no chance.

A Zach Scott goal helped the Seattle Sounders move into third in the West with a 1-0 win against the Colorado Rapids.

Toronto slumped to a club-worst fifth consecutive loss as Oswaldo Minda's 31st-minute effort gave Chivas USA a 1-0 win.

DC United extended their unbeaten run to four matches with a 2-1 win at the New England Revolution.

Maicon Santos and Chris Pontius struck for United after Pepe Moreno gave the Revolution a surprise sixth-minute lead.

The Philadelphia Union recorded their first win of the season as Gabriel Gomez's penalty saw them to a 1-0 victory at home to Columbus Crew, while Dallas came from behind to beat Montreal Impact 2-1.