George Mason University used three second-half goals yesterday to pull away from East Carolina, 4-0, in the first round of the Colonial Athletic Association men's soccer tournament in Richmond.

The top-seeded Patriots (12-4-4) will play fifth-seeded Navy (9-9-2) tonight at 7 in one semifinal.

The Midshipmen defeated No. 4 William and Mary, 3-2, in overtime. Midfielder Cliff Carpenter scored all three goals for Navy, including the game-winner in the 17th minute of overtime. Maurice Smith and Dave Viscovich scored for the Tribe (11-6-3).

Senior Ian Carter scored in the first half, and Denis Hamlett, Adrian Reynolds and Doug Sunshine had second-half goals as George Mason routed the eighth-seeded Pirates (6-16-1).

Carter, a first-team all-CAA defender, scored at 24:15 on a pass from Eddie Beach.

Patriots goalie Ricardo Leite faced only two shots to record his 10th shutout of the season. Since a 4-0 loss to No. 1 Evansville last month, George Mason is 6-1-1 and has allowed only two goals.

American 2, James Madison 1: In another first-round CAA game, Brad Atkins scored at 84:44 from five yards on Jon Hall's second assist of the game to break a 1-1 tie.

The Eagles will play Richmond (14-5-1) in a semifinal tonight at 9. Leigh Cowlishaw broke a 1-1 tie, scoring from a scramble in front of the goal, leading Richmond to a 3-1 first-round victory over North Carolina-Wilmington.

Virginia 3, North Carolina 0: Virginia took five fewer shots than North Carolina, but the No. 8 Cavaliers won the first-round game of the ACC tournament in Durham, N.C.

Virginia advances to a semifinal against Wake Forest tonight at 8.

Freshman Craig Brannan of Lake Braddock High School opened the scoring for the Cavaliers from five yards at 13:29. Ben Crawley and Kris Kelderman also had goals.

N.C. State 3, Maryland 1: Tom Tanner and Dwayne Hampton scored first-half goals to lead the fourth-seeded Wolfpack (14-4) to a victory over the fifth-seeded Terrapins (10-8-1) in their ACC tournament opener. The Wolfpack next faces Clemson.

Tanner scored at 11:25 from 18 yards on a pass from junior forward Henry Gutierrez, who was named ACC player of the year earlier in the day.