Arkansas, which finished 7-21 in the Southeastern Conference and endured a 10-game losing streak at one point this season, knocked off top-seeded Cal 3-2 on Saturday afternoon in the NCAA Berkeley regional.
The Bears (51-5) must now win three straight games to survive the regional and advance to the Super Regional round a week from now.
Boston U (41-15) outlasted Iona 4-3 in 13 innings to survive in the losers-bracket and set up an elimination game with Cal. Originally scheduled for 7 p.m., the game is expected to begin between 8:30 and 9 p.m.
The winner moves on to Sunday’s championship series, beginning at 5 p.m.
Cal would need to beat the Razorbacks (29-26) twice to claim the regional title and advance.
One more defeat and the Bears’ spectacular season is over.
Arkansas scored three times in the first inning, knocking starter Valerie Arioto out of the game, and the Bears never recovered. Arioto retired just one batter and allowed two runs before Jolene Henderson came on, surrendering the third run.
Jamie Reid stole home to get Cal on the books in the third inning, then Britt Vonk scored on an error in the fifth. But the Bears managed just five hits for the game, and freshman Breana Kostreba fouled out with two runners on in the seventh to end the game.