Colorado's unbeaten streak reached 14 matches as Marlon Hairston's sensational strike propelled the Rapids to three points against rival Sporting KC.
FC Dallas put their loss to Seattle in the rearview mirror with a dominant victory over Chicago Fire.
Major League Soccer: Marlon Hairston (78'), Colorado Rapids 1-0 Sporting KC
Major League Soccer: Arturo Alvarez (90'+1), FC Dallas 2-1 Chicago Fire
Mauro Diaz scored from distance and Fabian Castillo had two assists in FC Dallas' 3-1 victory over the Chicago Fire on Saturday night.
Fabian Espindola pulled DC United level late in the second half after Columbus were reduced to 10 men to steal a point on the road.