Bruce Arena got his first victory as coach of the New York Red Bulls, who beat Real Salt Lake 6-0 on Saturday night with three goals from reserve Edson Buddle.
The Red Bulls had lost two matches and drawn one since Arena, the former coach of US men's national team, was hired on July 18. They scored all their goals against Real Salt Lake (8-11-6) in the second half and tied a franchise record for most goals in a match and a Major League Soccer record for most goals in a half.
Jordan Cila, Todd Dunivant and John Wolyniec also scored for New York.
In other matches on Saturday, the Los Angeles Galaxy downed D.C. United 5-2, the Chicago Fire held out the Colorado rapids 1-0, and Chivas USA edged the Houston Dynamo 3-2.
Landon Donovan scored two goals and caused a defender to score an own-goal at Washington as Los Angeles kept D.C. United winless in its last five games.
Galaxy defender Chris Albright scored a goal for both his current and former teams. His goal in the 47th minute gave the Galaxy a 2-1 lead it never relinquished.
Albright, who played three seasons with D.C. United before being traded to Los Angeles in 2002, also scored an own-goal in the ninth minute.
Chicago defender Dasan Robinson scored his first MLS goal to give the Fire the win at Bridgeview, Illinois.
In the 12th minute, Fire captain Chris Armas sent a corner into the box and Robinson headed it into the right side of the net. The goal came shortly after Fire goalie Zach Thornton made saves on Colorado's Thiago Martins and Daniel Wasson.
At Carson, California, Ante Razov scored two goals and rookie Jonathan Bornstein added his second goal in as many games as Chivas moved to within one point of second-place Houston in the Western Conference standings.
Dwayne DeRosario scored two goals for the Dynamo. His first came in the 28th minute from a penalty kick, but soon after. Houston midfielder Ricardo Clark was ejected after he shoved Sacha Kljestan and Orlando Perez in the 31st minute.
Bornstein opened the scoring in the eighth minute when he raced toward Houston's goal and slipped the ball past goalkeeper Pat Onstad. The goal gave him six for the season, tops among MLS rookies.