Colorado held a 2-0 lead going into the 91st minute thanks to markers from Omar Cummings and Conor Casey, but Saborio first scored off a wild deflection and 4 minutes later added a penalty kick tally for the equalizer.
The draw enabled Real Salt Lake (15-4-11) to pull even with the Los Angeles Galaxy on points for the Western Conference lead, but the Galaxy won the regular-season crown on a tie-breaker.
Saturday's tie produced an RSL-FC Dallas matchup in the opening round of the playoffs while Los Angeles will now play the Seattle Sounders.
Blowing the late lead meant Colorado (12-8-10) avoided a first-round Western Conference matchup with the Galaxy and will instead move into the Eastern Conference where the Rapids will face the Columbus Crew.
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