Prep baseball

Marin Academy vs. Urban, 3:30 p.m., Big Red Park, SF

San Rafael at Las Lomas, 4 p.m., Walnut Creek

Prep softball

San Rafael at Moreau Catholic, 4:30 p.m., Hayward

Prep swimming

NCS trials, 10:30 a.m., Concord Community Pool

College track and field

Dominican at APU Last Chance, all day, Azusa