Frank Abbott of Lakewood Country Club one-putted 13 holes yesterday and easily defeated Peter Jacobi of Army Navy, 7 and 6, in the scheduled 36-hole final for the Washington Metropolitan Golf Association's men's amateur championship.

Abbott, who was even par for the 30 holes played yesterday, took the lead for good on the 13th hole of the morning round with a par 5 as Jacobi made double bogey.

When he sank a 20-foot birdie putt at the 18th, he had a 4-up lead at lunchtime. Jacobi was unable to get close to him thereafter.

"I putted out of my mind," said Abbott, who one-putted on the first five holes at Army Navy Country Club. "You really can't putt any better than I did the last two days.

"This is my kind of golf course. The straighter you hit the ball, the better you will wind up here. And it's not very long, which also helps me."

In the afternoon, Abbott, 40, a technical briefer for IBM, was leading, 9 up, before Jacobi won his first hole--the ninth, or the 27th of the match. Jacobi also won the next hole, but the match ended when the next two holes were halved.

Penalty strokes on the second and third holes in the afternoon cost Jacobi dearly, and boosted Abbott's lead to 6 up. On the second hole, Jacobi drove sharply to the right into a stream bed, and it cost him a stroke for the drop. Even then, he had no clear shot at the green, and had to hit safely onto the fairway. Jacobi made double bogey to Abbott's par.

On the next hole, Jacobi's ball moved as he was addressing it for his second shot, and he called a one-stroke penalty on himself. Abbott made a 23-foot putt for a birdie 3 to beat Jacobi's bogey.

"That first penalty was my own fault. I hit the ball badly. I deserved it," said Jacobi, an executive at an import company. "But the second penalty was a little unnerving. It was just one of those things."

Jacobi appeared to have a chance to win his first hole of the match at the next hole after Abbott's second shot on the par-4 hole landed almost 40 yards to the right and downhill from the green. But Abbott chipped to within six feet of the pin and made his par putt for a half.

Abbott won three of the next four holes to bring his lead to 9 up.