Taking a one run lead into the seventh, Alvelo gave up a line single to Taylor Koenig to start the inning. The Huskies then brought in Casey Stangel for relief in the pitcher's circle.
The first batter Stangel faced, Octavia Bond, grounded into a fielder's choice for the first out but then Bears leadoff batter Jazmyn Jackson bunted for her third base hit of the contest to put Bears on at first and second. Another fielder's choice at second gave Cal runners at first and third with two outs. Stangel threw three straight balls to Annie Aldrete before Alvelo came back into the game and finished walking Aldrete to load the bases. That brought up Kobie Pettis, who stepped to the plate with one hit in three previous at-bats. Alvelo got ahead in the count 0-2, , bringing most of the crowd of 1,442 to its feet.
Pettis grounded out to Julia DePonte at third to give the Huskies (28-8, 9-5 Pac-12) their seventh straight win, while the Bears dropped to 20-17-1 and 5-5-1.
In getting the win, Alvelo (14-5) went six and a third innings,allowing the one earned run, on six hits while walking three and striking out seven.
For the Bears, Katie Sutherland-Finch (2-4) suffered the loss in relief, going four innings while allowing one run, earned, on four hits. She walked one and struck out three.
The eventual winning run came in the bottom of the third. With one out, Kimberlee Souza reached on an infield single and Stangel walked. Amirah Milloy came into run for Souza, and scored on a two out single through the hole on the left side of the infield by DePonte.
Stephanie Trzcinski started in the circle for the Bears and gave up a run right away in the bottom of the first. Trysten Melhart and Taylor Van Zrper reached on back to back singles and advanced a base on a sacrifice by Ali Aguilar. Souza then plated Melhart for 1-0 Huskies with a groundout to second.
Cal tied the game in the top of the third when Lindsay Rood leadoff with a walk, stole second, and scored on a ground single to center by Jackson.
The teams return to Husky Softball Stadium for the finale of the series at 12:00 pm on Sunday with the Huskies seeking their second straight Pac-12 sweep after winning all three games on the road at Arizona State a week earlier.