Washington made fewer mistakes than the University of Massachusetts, as the Huskies edged the Minutewomen 3-1 in a game with no earned runs.
Washington advanced to the finals, Sunday at 5 p.m. UMass will play the winner of Cornell/Sacred Heart, 30 minutes after that game ends.
A tough defensive inning for Whitney Mollica contributed to Washington's first run. With one out, the senior third baseman made a terrific stab of Ashley Charters' tough bouncer to her left, but then overthrew first baseman Sarah Reeves allowing Charters to take second. Kimi Pohlman followed a grounder to Mollica, who took too long looking Charters back to second allowing Pohlman to beat her throw to first.
Jennifer Salling singled to left scoring Charters to put Washington ahead, 1-0.
UMass tied the game in the sixth. Whitney Williams hit a leadoff double off the fence in right-center field. She moved to third on Mollica's deep fly to right. Kimi Pohlman, who had just moved to right from center field, overthrew third and Williams raced home with the tying run.
But UMass gave it back in the top of the seventh. Balschmiter appeared to have escaped a bases-loaded jam with one out. After striking out Ashlyn Watson, she got Morgan Stuart to bounce to third.  But Mollica appeared to take her eye off the ball and it rolled through her legs allowing two runs to score.