In the match played at Owatonna Indoor, Eatherton posted a 6-4, 7-5 victory at fourth singles.
Kelly Gust (Sr., East Grand Forks, Minn.), Liz Gunderson (Sr., New Prague, Minn.) and Anna Yarbrough (Fy., Minneapolis, Minn.) each battled to a third set super-break loss.
At first singles, Gust fell 6-3, 6-7, 2-10. Gunderson lost at second singles, 5-7, 6-2, 7-10, while Yarbrough's match was at third singles, 6-2, 2-6, 7-10.
The Pipers will host Saint Benedict on Saturday, February 21, at 8:00 a.m. The match will be played at Baseline Tennis Center on the campus of the University of Minnesota.