Right-hander Elliot Zoellner pitched 3 1/3 scoreless innings of relief, but the Terps faltered late.
The Wolverines racked up 13 runs on 11 hits.
The Terps closed their season with eight straight losses.
After qualifying for the conference tournament last year, the Terps won't finish in the top 12 this season.
A five-run seventh inning pushed the Wolverines too far in front.
The Terps have lost six in a row.
“You look at those two guys, and I’d argue they’re top-two as far as lacrosse IQ on our team."
After shooting 1-for-19 to open the year, Snider has eight goals.
In her senior year, Mercer is excelling during the Terps' undefeated start.
The Terps topped Michigan, 16-12, on Saturday.