Cindy Davis of Prince Georges, the Maryland Women's Amateur champion, sank a 35-foot birdie putt on the 17th hole yesterday to fend off an upset bid by Lorraine Elder of Army Navy, 2 up, and gain the final of the Women's District Golf Association Championships at Woodmont North.

Davis, who plays No. 1 on Furman's women's team and was runner-up in the recent NCAA tournament, will play long-hitting Kim Williams of Bethesda for the title starting at 9:40 a.m. today. Williams won the first four holes and eliminated Jane Abood of Kenwood, 4 and 3, in the other semifinal.

Elder, who plays for Florida State, matched Davis shot for shot and the match was not decided until Elder three-putted the final hole from 65 feet for bogey, and Davis parred it.

Both were on the green at the par-4 17th hole in two shots. After Elder missed her birdie attempt, Davis stroked her long putt that paused on the lip and then dropped to give her a 1-up lead.

Williams, who beat Amy Geithner, last year's champion, in Wednesday's quarterfinals, was never threatened by Penn State player Abood. Williams brought the match to a close with a 25-foot downhill birdie putt at the par-5 15th hole.