The Colorado Rapids and the visiting Houston Dynamo both failed to produce chances on Saturday night, drawing 0-0 at Dick’s Sporting Goods Park in Commerce City, Colo.
Steve Clark of Houston made three saves and William Yarbrough of Colorado made two, with Yarbrough making the more difficult saves.
But neither was worked particularly hard on a night when the Rapids (3-10-10, 19 points) went scoreless for the fourth time in their past five home games and the seventh time this season.
Clark has now recorded eight clean sheets this season, while Yarbrough has seven.
Houston (8-10-5, 29 points) also failed to score for the third time in four games, dropping one spot to ninth in the Western Conference.
That is the final rung above the playoff line as the league takes a month off for the Leagues Cup, which will be contested by every team in MLS and LigaMX.
When the season resumes in mid-August, both the Dynamo and the Rapids will have played 11 regular-season games.
The Dynamo will be hoping to make the playoffs for the first time since 2017, while the Rapids are in risk of missing the playoffs in consecutive years.
During the first hour, each team had only one shot on goal, both from long range and causing each goalkeeper minimal bother.
Michael Barrios gained some room in transition for Colorado in the 70th minute, but his dipping effort from 20 yards out required only a straightforward save from Clark.
In the 82nd minute, the Houston goalie also denied Cole Bassett in transition at the near post.
Yarbrough had to be alert in the 89th inning as he dove left to thwart Corey Baird’s one-time effort following a Nelson Quinones layoff.
Houston was denied a late victory they did not deserve. Nonetheless, the Dynamo won only their sixth point away from home in 12 games.