What's on tap

Castilleja at Notre Dame-Belmont, 4 p.m. Sacred Heart Cathedral vs Menlo School at Crystal, Sacred Heart Prep vs Riordan at King’s Academy, 5 p.m.; Priory vs Mercy at Notre Dame-Belmont, 6 p.m.

Boys’ water polo

Half Moon Bay at Capuchino, 4 p.m.; Sequoia at Menlo-Atherton, Carlmont at Hillsdale, Burlingame at Woodside, Gunn at Serra, 5 p.m.

Girls’ water polo

Carlmont vs Half Moon Bay at Hillsdale, Terra Nova at Menlo-Atherton, 6 p.m.

TUESDAY

Volleyball

Half Moon Bay at South City, El Camino at Jefferson, Terra Nova at Mills, Capuchino at Westmoor, 5:15 p.m.; Sequoia at Woodside, Menlo-Atherton vs Burlingame at San Mateo, San Mateo at Aragon, Hillsdale at Carlmont, 5:30 p.m.; Pinewood at Crystal, 6:30 p.m.

Girls’ tennis

Menlo-Atherton at Hillsdale, Aragon at Half Moon Bay, Sequoia at Burlingame, San Mateo at Carlmont, Terra Nova at Capuchino, Mills at Oceana, El Camino at Westmoor, South City at Woodside, 4 p.m.

Boys’ water polo

Half Moon Bay at Mills, 5 p.m.; Terra Nova vs Priory at Sequoia, 6 p.m.

Girls’ water polo

Hillsdale at Mills, 4 p.m.; Mercy at Sequoia, San Mateo at Burlingame, 5 p.m.; Notre Dame-Belmont vs Capuchino at Burlingame, 6 p.m.

WEDNESDAY

Flag football

St. Ignatius at Menlo School, Castilleja vs Mercy at Menlo School, Notre Dame-Belmont vs Priory at King’s Academy, 4 p.m; Sacred Heart Cathedral vs Sacred Heart Prep at Menlo School, Mills vs Burlingame at Capuchino, Carlmont vs Aragon at Menlo-Atherton, Sequoia vs Woodside at Jefferson, 5 p.m.; Hillsdale at Jefferson, Terra Nova at Capuchino, 6 p.m.; San Mateo at Menlo-Atherton, 7 p.m.

Boys’ water polo

Menlo at Valley Christian, 4:30 p.m.; Menlo-Atherton at Burlingame, 5 p.m.; Sequoia at Woodside, Hillsdale at Aragon, 6 p.m.; Bellarmine at Serra, Mitty at Sacred Heart Prep, 6:30 p.m.

Girls’ water polo

Half Moon Bay at Aragon, 4 p.m.; Terra Nova at Woodside, 5 p.m.; Mitty at Sacred Heart Prep, 5:30 p.m.; Valley Christian at Sacred Heart Prep, 6:15 p.m.

Cross country

WCAL #1 at Golden Gate Park, 2 p.m.

THURSDAY

Volleyball

Crystal at Harker, Jefferson at Terra Nova, Westmoor at El Camino, Half Moon Bay at Mills, South City at Capuchino, 5:15 p.m.; Burlingame at San Mateo, Carlmont at Menlo-Atherton, Aragon at Sequoia, Woodside at Hillsdale, 5:30 p.m.; Menlo School vs Mercy at Serra, 6:30 p.m.; Notre Dame-Belmont at Sacred Heart Prep, 7 p.m.

Girls’ tennis

Carlmont at Sequoia, Burlingame at Half Moon Bay, Menlo-Atherton at Aragon, San Mateo at Hillsdale, Terra Nova at Westmoor, South City at Oceana, Mills at El Camino, Woodside at Capuchino, 4 p.m.

Girls’ water polo

Arroyo Grande at Sacred Heart Prep, 4 p.m.

FRIDAY

Football

Sacred Heart Prep at Hillsdale, Aragon at Menlo-Atherton, Half Moon Bay at Foothill-Pleasanton, Jefferson at MacDonald, Terra Nova at Vallejo, Monta Vista at El Camino, Mills at Saratoga, Homestead at Capuchino, Fremont-Sunnyvale at Sequoia, Serra at St. Ignatius, 7 p.m.

Boys’ water polo

Stevenson at Serra, 5:30 p.m.

SATURDAY

Football

Miramonte-Orinda at Menlo School, 1:30 p.m.

Boys’ water polo

Menlo School at Monte Vista-Danville, 1 p.m.