Amy Geithner won three straight holes on Lakewood's back nine to break up an even match and defeat Kim Williams, 4 and 2, yesterday for the championship of the Women's District Golf Association.

Geithner, 22, seven times the women's club champion at Country Club of Fairfax, one-putted four times on the back nine in finishing off Williams, who had evened the match with birdie on the 10th hole.

Geithner, who was two under par yesterday and who shot four-under-par 71 in winning the qualifying medal Monday, had lost to eventual winner Sally Voss in her other two attempts in this tournament.

Williams appeared ready to take the lead at the par-3 12th when she hit her tee shot onto the green, 25 feet from the hole, and Geithner's shot was short of the putting surface. But Geithner chipped up and made a five-foot putt for par and Williams three-putted, took bogey and fell one hole down.

Geithner blasted from a bunker in front of the green at the next hole and sank a seven-foot birdie putt for a two-hole lead. On the par-4 14th hole, Geithner went 3 up with par after Williams drove into the trees and took double bogey.