Eighth-seeded Gunn used a swarming, physical defense and just enough offense to upset No. 1 Monte Vista of Danville 45-41 on Saturday night in a Northern California Regional Division I game.

After trailing early, Gunn started jumping in passing lanes, swiping at balls, and generally hectoring the Mustangs every time they touched the ball. Thanks to that defensive effort, the Titans rushed out to a 21-15 halftime lead.

But Monte Vista nibbled away in the third period, and tied things at 40 on a scintillating sequence that saw sharpshooter Amanda Daily give up the ball twice, get it back, and bury a 3-pointer from the left wing while being fouled. She drained the free throw to give the Mustangs their only lead of the second half at 41-40 with just 1:09 left.

It was short-lived. The Titans got the ball to Claire Klausner, who calmly banged home a 3-ball of her own to put Gunn back ahead 43-41 with 46 seconds remaining.

Gunn center Meghan Mahoney led all scorers with 11, and did the dirty work around the basket, gathering 10 rebounds. Monte Vista was led by forward Lily Wissinger, who had 9 points to go with her 8 rebounds.

Division II

Lynbrook 47, Alameda 39: Down by six at the half, Lynbrook turned up the heat, scoring 34 points in the second half of this Division II game. Lynbrook (23-5) advances to play Presentation on Tuesday.

Jackie Hudepohl led all scorers with 22 points, and Sara Dyslin had 12 points.

St. Francis 50, Dublin 41: Top-seeded St. Francis advanced with a home victory over Dublin and will return to its home gym Tuesday to face No. 4 Florin-Sacramento (23-9)

The Lancers, who play in the rugged West Catholic Athletic League and reached the Central Coast Section Open Division final, had too much experience for the Gaels.

The game turned in the second quarter when the Lancers outscored the Gaels 14-2 after trailing 12-4 in the first quarter. Shelbi Aimonetti hit a long jump shot to give St. Francis a 15-12.

Dublin, which trailed 22-14 at the half, went on a 7-2 run to start the third quarter.

A 3-pointer for Aimonetti quieted the run, but Alanna Yee answered with one of her three 3-pointers to get the Gaels within 27-26. And when Kristjan Aubry knocked down a pull-up trey, the Gaels surged to a 31-30 lead.

Division V

Pinewood 52, San Domenico-San Anselmo 22: Pinewood knocked down 10 3-pointers and utilized a stifling defense to hold visiting San Domenico to just eight baskets for the game.

Pinewood (21-8) was led by speedy point guard Marissa Hing, who had with 14 points, including three 3-pointers. Six other Panthers hit 3-pointers in the game, which they broke open with a 17-6 second-quarter run that produced a 26-10 halftime lead.

Pinewood's fierce defense and doubling of San Domenico's post players made the difference. Pinewood forced nine first-half turnovers and Leanna Bade led the interior defense that held leading scorer Sasha Nagler, averaging 18 points per game, to just six points.

Eastside College Prep 53, Capital Christian-Sacramento 42: An early exit from the CCS Open Division playoffs meant Eastside Prep had to wait 10 days before it took the court again. After a shaky first quarter, the top-seeded Panthers (22-8) shook off the rust at home in the second round game. By halftime, it was business as usual and Eastside Prep advanced comfortably into the semifinals

Bay Area News Group's Gordon Kass, John Reid and Vytas Mazeika and correspondent Bill Kolb contributed to this report.