Right now, the horrific weather is the only opponent keeping the Harvard women's softball team from clinching the Ivy title.

On the strength of junior Mairead McKendry and sophomore Sarah Koppel's back-to-back home runs in the bottom of the sixth, the Crimson posted a 10-5 victory over Penn on Friday afternoon.

But the second game of the doubleheader was postponed, as well as Saturday's scheduled doubleheader against Princeton. Attempts to make up the second Penn game on Saturday and Sunday afternoon also failed.

Had the weather cooperated, the Crimson (12-17, 5-0 Ivy) would be finishing out its league schedule with this Thursday's doubleheader against Dartmouth. But five of the 10 scheduled Ivy games have been postponed, which means that Harvard still has a long way to go.

"It's been pretty frustrating," McKendry said. "We should have a lot more games in. The rain pushes everything to the end of the season. But I guess now this gives us a chance to focus more on single games."

The second Penn game will now be played Saturday at noon at Yale, along with a make-up of the April 15 rainout against Yale at 2 p.m. The Princeton doubleheader will be made up at home on Sunday.

The Quakers had proven themselves to be a dangerous team coming into this game, having beaten perennial Ivy power Princeton and defending champion Cornell in the previous weeks.

With the Quakers pounding junior pitcher Chelsea Thoke for four runs in the top of the fourth to take a 5-3 lead, and the rain threatening to end the game at any moment, Penn appeared to have the upset magic for the third week in a row.