He holds the Major League Soccer records for career wins, clean sheets, saves, and overall appearances.

As a freshman in 1997, he tended goal as the Bruins won the College Cup; after his sophomore year, he signed a Project-40 contract with MLS.

In 2004, with Hudson gone, he lost his starting job to Troy Perkins, but regained it for the stretch run, backstopping DC to the MLS Cup.

His hard work was rewarded at the end of the season when he was named Real Salt Lake's 2007 Most Valuable Player.

For his efforts, he was named MLS Cup MVP, only the second goalkeeper to earn the honor (Tony Meola accomplished the feat in 2000).

With Rimando as goalkeeper, Salt Lake set an MLS record for fewest goals allowed in a single season - just 20 in 30 matches.

Additionally, the team set a league record for highest goal differential (+25), but they were upset by FC Dallas in the first round of the playoffs and couldn't defend their MLS Cup title from the previous season.

Despite his stellar season - one of the greatest ever by a keeper in American professional soccer - Rimando did not receive the MLS Goalkeeper of the Year award.

Rimando saved a penalty kick from Matt Besler, but Real Salt Lake lost in sudden death.

On August 9, 2014, playing at home against his former club, D.C. United, Rimando secured the lead in career shutouts for an MLS goalkeeper in a 3–0 win.

Rimando played with an injured left shoulder and made seven saves as Real Salt Lake lost 2–0 and were eliminated from the playoffs.