Chad Marshall scored in the 94th minute to give the Seattle Sounders a 1-1 tie with the Houston Dynamo on Sunday.
Marshall buried the finish from a behind the 6-yard box after Oalex Anderson's cross deflected off goalkeeper Joe Willis and defender Raul Rodriguez. The final whistle blew shortly after the ensuing kickoff to give Seattle its first draw of the season.
Giles Barnes scored for Houston in the 35th minute. He was facing away from the ball when Jalil Anibaba made a pass, turned around in time to see it coming his way and improvised a 15-yard turnaround flick that looped into the upper left corner.
Willis had five of his six saves in the second half, stopping Clint Dempsey's attempt in the 92nd minute.
Matt Lampson had eight saves for his third straight shutout and the Chicago Fire held on for a scoreless draw with New York City FC.
David Villa put five shots on frame for New York City, including a free kick in the 83rd minute and a breakaway attempt in the 84th that forced Lampson to make key saves late.
The Fire had no shots on goal, although rookie Jonathan Campbell's goal in the 60th minute waived due to an offside call.
City beat the Fire 4-3 at Chicago when both teams opened the season March 6.
Fanendo Adi opened the scoring for Portland in the 52nd minute, but Nat Borchers' own goal in the 84th helped the LA Galaxy draw with the Timbers 1-1 in Sunday's late match.
Diego Valeri's diagonal pass set up Adi as he peeled away from the defensive back line and finished with a low right-footed shot -- his fourth goal of the season.
Borchers made a diving attempt to clear Sebastian Lletget's cross, but inadvertently smashed the header into the Timbers' goal.
The Timbers have one win at StubHub Center in eight visits; the Galaxy extended their unbeaten run to 39 of the last 41 home games.
Galaxy defender Robbie Rogers left in the eighth minute due to a hip contusion. Timbers midfielder Darlington Nagbe exited in the 76th after a leg injury from Nigel de Jong's tackle. Referee Allen Chapman gave de Jong a yellow card for the challenge.