Plagued by a bad back and neck, favored Mary Ann Battle lost a quafter final match to Sharon Briggs 4 and 3, yesterday in the Women's District Golf Association championship at Montgomery Village.

"I'm hurting today, but that's no excuse for what happened," said Battle, the Maryland State Amateur champion. "Sharon played very well. I don't feel I was concentrating as much as I usually do."

With a towel, wrapped around her neck for a heat treatment, Battle said, "I was hitting on the sixth and I heard something snap. i'm going to take it easy for a while."

"No, I didn't think I was going to win," said Briggs of the upset. "I kept telling myself that I could give her a match, but I didn't think I'd win.Her game wasn't as good as it should have been. Her neck was really bothering her."

Battle, who plans to play in two major national tournaments this summer, was three down on the turn at Montgomery, home course for both.

Sue Keeney, who won the championship in 1974 and 1975 and was runner-up last year, had some good shots to defeat Nancy Hollenbeck, 4 and 3.

A member of Army Navy, Keeney said, "the greens here are faster than a lot of the greens in the area. There are some very subtle breaks that make club selection difficult if you don't know where the pins are."

Keeney took up swimming and golf as a child to help fight the polio that efflicated her right leg. "My mother was told I would never be able to walklong distances. Obviously, that's not true because one covers about five miles in 18 holes."

Keeney said she would prepare for today's play by running two miles last night.

Argyle's Rebecca Doman, who defeated Fran Schultz, 2 up, said neither of them played her best game. "I had trouble putting and getting the ball of the fairway.

Doman was the WDGA champion in 1966 and 1972, and was Maryland State Amateur champion in 1968 and 1971 and runner-up four other times.

"I'm going to go out and take some shots for a couple of hours tonight," said Doman.

Bernice Morrison of the Country Club of Fairfax, advanced by heating Ruth Ann Verell, 3 and 1. She faces Keeney today, whom she considers "the best golfer in the area."

Morison, who holed out from a bunker on the par-four 10th for par, works in the pro shop at River Bend. "I can practice every day." She made the WDGA championship last year but lost her fist match.