The Tars dominated game one 8-0, then came from behind to walk off with a 3-2 win in game two.
Rollins took the series opener from Florida Southern behind a no-hitter from freshman Ashley Worrell.
Rollins tallied their eleventh and twelfth shutouts of the season.
Rollins earned the 6-5 victory to open the day, while West Chester took the second leg 3-1.
The West Chester Rams, Southern Connecticut State, and Florida Southern all visit Rollins Softball Stadium during the week.
Rollins came back to defeat Southwest Minnesota State in game one, then took a low scoring game two