Despite going down a woman into overtime, Penn State sealed another sudden-death win via a Payton Wainman goal.
A strong fourth quarter propelled the Nittany Lions over the Wolverines.
Hall will play at her fourth collegiate program.
Merkle became the second Lady Lion to find a new program this offseason.
Penn State has now swept Rutgers in back-to-back seasons.
After leading the Nittany Lions in kills on Friday night, Sean Harvey did the same in this one.