Derrick Tucker scored 14 of his 26 points in the first quarter as Mount Vernon took a 12-point lead and raced to a tournament scoring record in a 120-65 thumping of Madison in a first-round game of the Mount Vernon Invitational tournament.

In the other first-round games: Jerome Butler scored 10 of his 23 points in the third quarter and Carlton Shearin added 19 points and had 19 rebounds as Hayfield beat Woodbridge, 87-77.

Todd Blondin had six points in the last three minutes to give West Springfield a 60-55 upset victory over Phelps. Willie Bailey scored nine fourth-quarter points, including a three-point play late in the game, to ease T.C. Williams past Mount St. Joseph's of Baltimore, 80-77.

In tonight's semifinals, T.C. Williams (4-2) plays Hayfield (7-0) at 7 and West Springfield (3-3) meets Mount Vernon (5-1) at 8:45. Mount St. Joseph's (4-5) plays Phelps (3-2) at 3 in one consolation game and Woodbridge (2-2) takes on Madison (2-4) at 5 in another.

Tucker, scoring mostly on layups and short jump shots, and Frank Smith did what they wanted in the first two periods as fast-breaking Mount Vernon took a 33-21 lead after one quarter. Smith (14 points, 12 assists), Tucker and Jeff Thomas (25 points) led the way as the Majors extended their advantage to 66-29 at intermission.

Williams, which led by as many as 14 points in the first half, became careless in the third quarter and allowed Mount St. Joseph's to get back in the game.

The Gaels pulled even at 67 on a fast-break layup by John Winkler with 3:20 left in the game.

The Titans regained the lead on a layup by Doug Lovelace with three minutes to play. Seconds later, James Wood scored on a three-on-one fast break to give Williams a 71-67 lead with 2:23 on the clock.

Phelps led West Springfield until losing its shooting touch early in the third quarter to fall behind, 46-42. Phelps made only five of 15 field goal attempts in the quarter. Blondin made three jump shots, including a 15-footer at the buzzer, to put the Spartans ahead going into the final quarter.

Phelps turned two turnovers by West Springfield into baskets to tie the game at 48 as Johnny McCoy (18 points) and Bernard Day (17) made layups.

But the patient Spartans continued to work the ball until they came up with an easy shot or a trip to the free throw line. Blondin tipped in a basket, Joey Booher drove the line for a layup and Chuck Herring made a pair of free throws to give West Springfield a 54-48 advantage with three minutes left.

Leading by five at halftime, Hayfield moved out to an 11-point lead, 58-47, midway in the third quarter.