A Chris Wondolowski double canceled out Danny Mwanga's earlier pair to leave Portland and San Jose knotted at two apiece.
Portland opened the scoring immediately before halftime. Danny Mwanga played a one-two with Rodney Wallace that set him free through the Earthquakes defense. Mwanga rounded Jon Busch and finished.
After and hour, the Timbers, featuring third-string goalkeeper Joe Bendik, moved two goals ahead. Frank Songo'o went on a mazy run from his own half and laid the ball off to Mwanga. The 21-year-old uncorked from distance and the shot screamed past Busch.
San Jose threw Alan Gordon and Chris Wondolowski into the match. It paid off. Gordon headed on a long ball out of the back, which Steven Lenhart tapped into the path of Wondolowski. The leading scorer in MLS slipped home a left-footed shot from the top of the box.
In stoppage time, Sam Cronin drilled a cross into the area. Hanyer Mosquera tipped it on toward the far post instead of clearing, and Wondo pounced to equalize. He now has 21 goals this season.
Follow ZAC LEE RIGG on or shoot him an email