Former Jefferson standout Hannah Petersen belted a leadoff home run in the bottom of the seventh inning to give Mount Mercy its first Midwest Collegiate Conference win on Sunday, a 4-3 triumph over William Penn at Tomahawk Park.

William Penn bounced back to win the nightcap, 15-2.

Petersen had three hits in four trips to the plate for the Mustangs (12-19, 1-9). She also scored three runs. Petersen was the starting pitcher, but came out in the fifth after allowing three runs. Sara Kron picked up the win in relief for the Mustangs.

The nightcap was tied at 2-2 entering the fifth but the visitors scored 13 runs over the final three innings, including nine in the seventh, to gain the win.

Ellie Rizor had two hits in Game 2 for Mount Mercy. Maddi Vaske had a pinch-hit single driving home both Mustang runsin the fourth.

William Penn is 13-24, 6-6.

Game 1

William Penn   010 110 0 - 3  7  1
Mount Mercy    010 020 1 - 4  7  1

Young and Zerley. Petersen, Moore (5), Kron (5) and Ferguson. WP - Kron. LP - Young.

Game 2

William Penn    002 013 9 - 15 18  1
Mount Mercy    000 200 0 -   2   5  2

Grove and Zerley. Magana, Moore (7), Petersen (7) and Ferguson, WP - Grove. LP - Magana