With two outs and runners on first and second, the Eagles' Julie Ulbrich laced a base hit into leftfield. As Perrotta chugged around third and headed home, Dunn came up and fired a bullet to the plate. Teller fielded the ball cleanly and applied the tag to cut down Perrotta and keep the Crimson within striking distance.

That play proved a game saver as Harvard mustered only one run in the bottom half of the inning when Bagley bunted LaSovage home. One inning later, Koppel worked her magic again.

After a Teller single juiced the bags, Koppler lofted a hit into right field. The wind wreaked havoc with the ball, allowing it to drop and Watanabe to score from third. The wind, however, only turned what would have easily been a sacrifice fly into a game-winning hit.

"That was definitely a clutch performance by an underclassmen," Teller said of Koppel's day. "I wasn't surprised; [Koppel] is a great hitter."

Koppel also pitched the final three innings in relief of freshman Julie Schwab for the win. Schwab gave up seven hits and three earned runs in six innings.

Harvard has now won 12 consecutive home games, a streak that dates back to a loss to Rutgers on April 5 of last year.

That home winning streak as well as the Crimson's 19-game regular season Ivy League winning streak will be on the line this weekend as Harvard opens its Ivy season with home doubleheaders against Yale and Brown. The Crimson will face off against the Elis tomorrow at 1 p.m. and versus the Bears on Sunday at 1 p.m.