Jimmy Nielsen had five saves, while Tally Hall had one stop and Sporting Kansas City and the Houston Dynamo played to a 0-0 tie Wednesday night.
The draw extends Houston's unbeaten streak to five games, but the Dynamo (13-10-9, 48 points) were unable to close the gap on Kansas City (15-10-7, 52 points), which remained four points ahead of the Dynamo in second place in the Eastern Conference.
Nielsen was tested early by the Dynamo.
Will Bruin had a shot from the right box stopped by a sliding Nielsen in the second minute, and Nielsen got a foot on a Bruin shot from outside the right goalkeeper's box in the sixth minute.
Corey Ashe let loose a shot from 30 yards in the middle of the field in the seventh minute that Nielsen had to jump up and bat over the crossbar.
Aurelien Collin kept the game scoreless at the half, clearing a Brad Davis free kick from outside the upper right box off the end line.
Off a throw-in, Kansas City had one of its best chances in the 67th minute, but Dominic Dwyer's header from the penalty area was saved by Hall.
