Robbie Keane was on target as Los Angeles Galaxy moved up to fourth in Major League Soccer's Western Conference.
Jairo Arrieta gave home side Columbus Crew a 48th-minute lead but Republic of Ireland striker Keane levelled 16 minutes later.
Toronto and Portland Timbers drew 2-2 in the clash of the bottom clubs in the Eastern and Western Conference.
Sal Zizzo gave Portland a 20th-minute lead but goals from Eric Hassli and Luis Silva in the space of seven second-half minutes turned the contest around, until Darlington Nagbe equalised for the visitor eight minutes from time.
The night's only winner was FC Dallas, which scored twice in the second half to sink Vancouver Whitecaps.
After a scoreless first half in Canada, Fabian Castillo netted on the hour and substitute Jonathan Top made the points safe 10 minutes later.