What happened: Darren Yapi entered for Rafael Navarro in the 91st minute. A 58th-minute header supplied the only goal.
Why it matters: Colorado moved to 31 points and seventh in the Western Conference. The loss extended its rival's MLS winless streak to eight matches.
By the numbers: Colorado held 64% possession and led 14-4 in shots, 4-0 on target. The clean sheet tied the club record of five straight at home.
What to watch: Colorado next plays Columbus on Sept. 5.