The final game was close, 15-12, but ended Harvard's hope for victory and the regular-season title.
While Yale had four players with double figures in kills, just two Crimson hitters managed more than ten kills. Co-captain Melissa Forcum finished with 14 and junior outside hitter Kristen Schaeffer added 11.
Kate Nash contributed 34 assists and three service aces.
Brown 3, Harvard 0
The Crimson played well, but could not slay the Bears in Providence on Saturday.
"We played very, very close, Pushing point by point," Schafer said. "They were just able to keep Putting the ball back at us."
Harvard pushed for many points, but could not take a game as Brown won 15-10, 16-14, 15-12 in just over an hour and a half.
"The atmosphere was less threatening [than at Yale]," Schafer said. "There was a lot of communication."
Forcum led the way for the Crimson with 18 kills, and Jellison and Schafer chipped in with 12 apiece.
Nash assisted on 44 points and Jellison had 17 digs. Jellison and senior Catherine Betti each had two service aces.
Brown's Tomo Nakanishi finished with a match-high 21 kills, thanks to her tough play at the net.
"She hits very smart, and she hits high," Schafer said. "Our defense was trying to pick it up."
The Crimson hopes to pick things up this week at Northeastern and then over the weekend in the Harvard Invitational. The following weekend is the Ivy League tournament at Brown. The league championship will be decided there with the winner going on to the NCAA Tournament.
"Our goal of winning the league is there for us," Schafer said. "We will have something to prove, but so will all the other teams."