T.C. Williams' Mike Mansy, trailing leader Jim Hill of Oakton by more than 25 meters with less than 1,000 to go, came up with a furious kick to handily capture the championship event of the seventh annual Georgetown Prep Cross Country Classic yesterday.

Mansy, a-foot-6 1/2, 110-pound junior, covered the 5,000-meter course in 16:023 for for his third major invitational title of the season. Hill finished second in 16:067, followed by Jay Kelchner of James Wood (16:239).

Virginia schools dominated the day's feature race, capturing the first nine positions. Hermitage of Richmond, the defending Virginia AAA cross-country champion, placed five men in the top 34 finishers to win the team trophy with 90 points.

Mansy stayed with the leaders for the first half of the race before Hill started to pull away. "Jimmy left us early. We couldn't believe it." said Mansy. "I had to go after him."

Mansy rushed past the Oakton runner on the course's final long, rising slope, and glided to a 75-meter triumph.

"Everybody said he (Hill) was dying, so I started going," explained Mansy. "I felt tired, but he was right in front of me and I knew I could catch him."

In the varsity girls race. Val Hardin of Woodbridge won her second straight classic crown, outdistancing the field by more than 100 meters to finish the 3,000-meter event in 10:35.6. Northwood's Ruth Drengwitz took second in 10:51.7.

Bethesda-Chevy Chase place five girls in the top 35 to win the team title with 92 points, led by Carolyn Hughes' seventh place.