Los Angeles FC and Philadelphia Union remain top of the Western and Eastern Conferences respectively despite playing out a 2-2 draw on Saturday.
Franco Escobar's goal in the 82nd minute salvaged a point for LAFC, who went down twice at home to eventually restore parity in the top-of-the-table clash.
Daniel Gazdag was on hand at the back post to score in transition in only the ninth minute for the Union, who looked to absorb pressure from there.
Kwadwo Opoku equalised in the 56th minute, but Julian Carranza restored Philadelphia's lead nine minutes later with a lovely curling finish, only off a step after stopping the ball dead with his first touch.
Escobar was the unlikely source of an equaliser despite LAFC's 66.5 per cent possession for the match, slotting home the rebound after a Jose Cifuentes header from a corner.
Philadelphia remain top in the East on 19 points, a point ahead of New York RB, who could only manage a 1-1 draw at home to Portland Timbers.
CF Montreal took the three points and third spot from Orlando City in a 4-1 thumping, with Joao Moutinho's goal in the 72nd minute failing to stop a two-goal surge in the final 10 minutes. Atlanta United won with the same scoreline against Chicago Fire, who are now bottom of the conference.
With only nine points separating the 14 places in the East, Inter Miami also remain on 10 points after their 1-0 loss to Charlotte. New York City and Sporting KC played out a goalless draw.
New England Revolution and Columbus Crew finished with a 2-2 draw after substitute Erik Hurtado grabbed an 89th-minute equaliser for the Crew, while DC United defeated Houston Dynamo 2-0.
Cincinnati moved to fifth in East with a 1-0 win over Minnesota United via Brandon Vazquez's stoppage-time winner in the 93rd minute.
Meanwhile in the West, FC Dallas moved to third and returned the Seattle Sounders back to Earth after their CONCACAF Champions League triumph during the week, claiming a 2-0 victory.
In the other all-Western matchup, Nathan's goal in the 63rd minute was sufficient for the San Jose Earthquakes against the Colorado Rapids, taking a 1-0 win.
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