Real Salt Lake ran its franchise-record home unbeaten streak to 19 regular-season games, tying 1-1 with Chivas USA on Saturday night.
RSL has not lost at Rio Tinto Stadium since May 16, 2009.
Ned Grabavoy scored for Real Salt Lake on a stunning left-footed volley in the 67th minute. His goal came five minutes after entering the game for captain Kyle Beckerman, who returned after missing seven straight games with a torn foot tendon.
Jesus Padilla equalized for last-place Chivas just three minutes later on a blast from the top of the box that RSL goalkeeper Nick Rimando knocked down from chest level, only to have it bounce under him and into the goal.
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RSL moved to 31 points, nine behind Los Angeles in the Western Conference.
At Crew 3, Dynamo 0: Emilio Renteria scored a gift goal in the first half and William Hesmer had his second straight shutout and eighth of the season.
Andy Iro scored in the 84th minute and Leandre Griffit, two minutes into his MLS debut, added another in the 90th.
Columbus (10-3-4) is first in the Eastern Conference. Houston (5-8-4) is 0-4-3 in the past seven games. Renteria took advantage of a blunder by Houston backup goalkeeper Tally Hall in the 34th minute.
At F.C. Toronto 1, F.C. Dallas 1: Milton Rodriguez scored in the 77th minute.
The goal, assisted by David Ferreira, came after Dallas gained a corner kick on Toronto’s sloppy defensive play.
Maicon Santos scored in the 61st minute for Toronto.
Toronto is unbeaten at home this season at 5-0-4 and is 6-5-5 overall. Dallas is 6-2-8.
Toronto FC was coming off its first MLS loss in more than two months.