It was a tense affair after Galaxy midfielder Mike Magee had converted in the first half to put a capstone on a period of Los Angeles dominance. But they sat back in the second half and allowed Salt Lake back into the match, with striker Robbie Findley finding the equaliser in the second half to send the match to extra-time.
Neither of the sides could find the goal in extra-time, and the winner had to be decided with penalties. RSL came up tops and won their first title in the club's history, while Los Angeles fell in their sixth MLS Cup appearance.
Salt Lake's goalkeeper, Nick Rimando, made two saves before defender Robbie Russell buried the winning kick to ensure victory and earn the club its first piece of silverware. And for his heroics between the sticks, he was named the Final's Most Valuable Player.
"We had our ups and downs, but this team believed and now we're champions," he says in the post-match presser published on the club's official webpage. "We're bringing it back home [to Utah]."
Head coach Jason Kreis adds: "I'm extremely pleased for the players, first and foremost. They've put in so much work over for the two years that most of them have been together.
"It all started off with a dream and an idea about what this team could look like and would look like over time.
"And what we saw this year was that, at certain points in the season and in certain games, we saw what we're capable of and when we played our best soccer, we were one of the best teams in the league.
"So now it's nice to say we are the best team in the league," concludes the buoyant Kreis.