Ben Olsen, who guided D.C. United from a record-low three wins last year to an Eastern Conference regular-season crown, was named Major League Soccer's Coach of the Year on Tuesday.

The 37-year-old American won the award in voting by a panel of players, reporters and team executives that also named Costa Rican midfielder Rodney Wallace of the Portland Timbers of the league's Comeback Player of the Year.

Wallace returned from a serious knee injury midway into the season to help his club in the final matches of the campaign.

Olsen, in his fourth full season with United, produced the biggest one-season turnaround in MLS history, from three wins and 16 points in 2013 to 17 wins and a team-record 59 season points. United's goal differential improved by 52 as the team went 14-0 with one drawn when leading at halftime.

Olsen became the first D.C. United coach to take the award since Bruce Arena in 1997.

Olsen had 103.16 points to 47.24 for the runner-up, Seattle's Sigi Schmid.

Wallace missed Portland's first 16 matches after knee surgery, then scored five goals in 17 matches. He had 64.02 points to 59.97 for runner-up Charlie Davies, a striker for the New England Revolution.