U.S. under-20 keeper Chris Seitz replaced Nick Rimando and in his first MLS action turned away a long blast from Herculez Gomez for one of his two saves. Despite triggering a few anxious moments in the Colorado penalty area, RSL was unable to beat Bouna Coundoul and for the second straight time was shut out at home.
It tied the Crew, 0-0, on April 14 before being drilled by Chivas USA, 4-0, on the road nine days ago.
Brown muscled his way past defender Danny Torres to reach a bouncing ball and then picked his spot to score his second goal of the season. Beckerman scored after a free-kick goal by Herculez Gomez was disallowed by referee Abiodun Okulaja, who had been positioning the defensive wall and hadn't signaled to restart play.
Gomez blasted the re-kick into the wall and it rebounded out to Beckerman, whose shot skipped off a defender and past Seitz. Fans jeered Beckerman, who held his hand to his ear after scoring the second goal. Last year's final regular-season meeting between the teams produced seven cautions and angry words when Colorado scored the only goal of the match rather than kicking the ball out of play while an RSL player was lying on the field injured. RSL operator-investor Dave Checketts confronted Pablo Mastroenias the Rapids celebrated their victory.