On a goal and two assists by John Wilmar Perez, Columbus extends its unbeaten streak to eight with a 3-0 win over Dallas. … Rodrigo Faria and Mark Chung shoot the MetroStars past D.C. United, 2-1. … League leading scorers Alex Pineda Chacon and Diego Serna each strike in MiamiÆs 2-1 win over Chicago. … Ezra Hendrickson hits his fifth gamewinner of the season in overtime to take Los Angeles past Kansas City, 2-1. Aug. 15 in Columbus COLUMBUS 3 DALLAS 0 Scoring Summary: CLB–Maisonneuve (Perez) 18 CLB–Washington (Perez, Cunningham) 75 CLB–Perez (unassisted) 91+ COLUMBUS — Tom Presthus, Mike Lapper, Tenywa Bonseu, Duncan Oughton, John Harkes, Brian Maisonneuve, Robert Warzycha (Ansil Elcock, 78), John Wilmar Perez, Mike Duhaney, Dante Washington (Kevin Adams, 89), Jeff Cunningham (Edson Buddle, 77). CAUTIONS: Duhaney 54; EJECTIONS: none. DALLAS –Matt Jordan, Richard Farrer, Jorge Rodriguez, Ryan Suarez (Edward Johnson, 73), Paul Broome, Chad Deering (Aleksey Korol, 86), Oscar Pareja, Joselito Vaca, Antonio Martinez, Ariel Graziani, Jason Kreis. CAUTIONS: Martinez 83; EJECTIONS: none. Referee: Kevin Stott; Assistant Referees: Steve Taylor, John Konstantinidis. Attendance: 19,008; Weather: Partly Cloudy, 78 Degrees, Pending. Aug. 15 in Washington, D.C. D.C. UNITED 1 METROSTARS 2 Scoring Summary: MET–Faria (Paule, Villegas) 10 MET–Chung (Faria, Villegas) 41 DC –Lisi (unassisted) 87 D.C. UNITED — Mike Ammann, Scott Vermillion (Craig Ziadie, 46, Stephen Armstrong, 56), Eddie Pope, Ryan Nelsen, Brian Kamler, Carey Talley, Marco Etcheverry, Bryan Namoff (Mark Lisi, 46), Santino Quaranta, Jaime Moreno, Abdul Thompson Conteh. CAUTIONS: Armstrong 92+; EJECTIONS: none; METROSTARS — Tim Howard, Steve Jolley, Daniel Hernandez, Mark Semioli (Billy Walsh, 83), Orlando Perez, Ross Paule (Pedro Alvarez, 66), Tab Ramos (Mersim Beskovic, 95+), Richie Williams, Rodrigo Faria, Petter Villegas, Mark Chung. CAUTIONS: Williams 23, Semioli 73; EJECTIONS: none; Referee: Paul Tamberino; Assistant Referees: Robert Fereday, George Vergara Attendance: 11,618; Weather: Warm Aug. 15 in Chicago CHICAGO 1 MIAMI 2 Scoring Summary: MIA–Pineda Chacon (Henderson, Serna) 15 CHI–Kovalenko (Nowak) 32 MIA–Serna (Henderson, Preki) 38 CHICAGO — Zach Thornton, Jim Curtin, Carlos Bocanegra, C.J. Brown (Jamar Beasley, 85), Jesse Marsch (Evan Whitfield, 59), Peter Nowak, Chris Armas, DaMarcus Beasley, Dema Kovalenko, Hristo Stoitchkov (Eric Wynalda, 70), Ante Razov. CAUTIONS: Brown 61, Stoitchkov 62, Kovalenko 83, Thornton 84; EJECTIONS: none. MIAMI — Nick Rimando, Carlos Llamosa, Pablo Mastroeni, Tyrone Marshall, Lazo Alavanja (Ivan McKinley, 67), Jeff Bilyk, Chris Henderson, Jim Rooney, Alex Pineda Chacon (Greg Simmonds, 92+), Diego Serna, Preki. CAUTIONS: Henderson 28, Llamosa 34, Serna 71, Preki 73; EJECTIONS: Serna 82. Referee: Gus St. Silva; Assistant Referees: Francisco Sanchez, Steven Davidson. Attendance: 14,737; Weather: Cloudy, 75 degrees. Aug. 15 in Kansas City KANSAS CITY 1 LOS ANGELES 2 Scoring Summary: LA –Califf (Elliott) 12 KC –Lowe (unassisted) 57 LA –Hendrickson (Victorine) 96 KANSAS CITY — Tony Meola, Mike Burns, Nick Garcia, Peter Vermes, Brandon Prideaux, Chris Klein (Chris Brown, 96), Kerry Zavagnin, Matt McKeon, Francisco Gomez (Onandi Lowe, 46), Gary Glasgow, Roy Lassiter CAUTIONS: Lassiter 76, Garcia 82; EJECTIONS: none. LOS ANGELES — Kevin Hartman, Danny Califf, Greg Vanney, Ezra Hendrickson, Paul Caligiuri, Simon Elliott, Mauricio Cienfuegos (Marvin Quijano, 62), Peter Vagenas, Cobi Jones, Luis Hernandez, Sasha Victorine CAUTIONS: Cienfuegos 56, Hendrickson 63, Hernandez 80. Referee: Peter Kokolski; Assistant Referees: Craig Lowry, George Gansner. Attendance: 7,893; Weather: Cloudy, Windy, Overcast, 76, Windy.