Mark Lawrence of Richmond defeated Gill FitzHugh of Vienna, 3 and 2, for the Virginia State Amateur golf championship today at Willow Oaks Country Club.

Lawrence, 21-year-old former University of Maryland player, took the lead for good with a three-foot birdie putt on the 30th hole, a pair 5, and clinched with a four-foot birdie on another par 5, the 34th.

Lawrence was one over par. Fitzhugh, 32, a management analyst for the General Accounting Office and winner of the Northern Virginia Amateur last week, was four over.

Fitzhugh had his last lead when he dropped an eight-foot putt for birdie on the 28th hole. Fritzhugh then hit into two traps on the 184-yard 29th hole for double bogey and Lawrence got even.

Fitzhugh's 20-foot par putt dipped out on the 32nd hole, giving lawrence the first 2 up lead of the match.

Lawrence, whose father lost in the 1958 Virginia Amateur final to Jimmy Flippen of Danville, said, "It was a load off my back to get into the final" after he lost in the semifinals in 1977 and 1978.

"It was just a hang-in-there match all the way," Lawrence added. "Nobody could make a string of birdies or a string of bogeys."

Lawrence won the Virginia state hight school and state junior in 1976 and the Richmond Golf Association championship two years ago.

Lawrence's tee shot on the 12th today hit a spectator, who was taken away by ambulance as a precaution.

"When they were putting him in the ambulance, he told me I owed him one," said Lawrence.