Washington • Luis Silva scored twice to help D.C. United beat the Colorado Rapids 4-2 on Sunday night.
United (12-7-4) opened the scoring in the 11th minute. Taylor Kemp sent a perfect through-ball to Silva, who faked Drew Moor to the ground and chipped his shot over Clint Irwin for the early lead.
Colorado (8-10-6) answered in the 52nd minute when Dillon Serna's long-range shot surprised goalkeeper Bill Hamid.
Silva broke the tie in the 67th minute with a half-volley just outside of the 6-yard box off a pass from Sean Franklin.
United made it 3-1 in the 82nd minute. Kemp's second assist of the night fed Chris Wolfe, who slipped a shot past a diving Irwin. Fabian Espindola tacked on his eighth of the season, a left-foot blast from the top of the box in the 87th minute.
Deshorn Brown scored in extra time for Colorado.
MLS standings
EASTERN CONFERENCE
W L T Pts GF GA
Sporting K.C. 12 6 6 42 36 23
D.C. 12 7 4 40 36 26
Toronto FC 9 8 5 32 33 34
Columbus 7 8 9 30 32 32
New York 6 7 10 28 35 34
New England 8 12 3 27 30 36
Philadelphia 6 9 9 27 36 39
Houston 7 12 4 25 25 42
Chicago 4 6 13 25 29 35
Montreal 4 14 5 17 23 41
WESTERN CONFERENCE
W L T Pts GF GA
Real Salt Lake 11 4 9 42 38 28
Seattle 13 7 2 41 38 30
FC Dallas 11 7 6 39 43 32
Los Angeles 9 5 7 34 35 23
Vancouver 7 4 12 33 33 29
Portland 7 7 10 31 39 39
Colorado 8 10 6 30 34 35
San Jose 6 9 6 24 25 27
Chivas USA 6 11 6 24 21 36
Friday's Games
Houston 2, Philadelphia 0
Saturday's Games
Real Salt Lake 2, Seattle FC 1
Montreal 1, Chicago 0
Columbus 4, Los Angeles 1
New England 1, Portland 1, tie
Sporting Kansas City 4, Toronto FC 1
Chivas USA 0, Vancouver 0, tie
FC Dallas 5, San Jose 0
Sunday's Game
D.C. United 4, Colorado 2