Events to watch
BASEBALL Interscholastic League of Honolulu: Saint Louis (2-1-1) at Iolani (4-0), 3:45 p.m.
BASEBALL O'ahu Interscholastic Association season opens with nine games. Three-time defending champion Kailua will play host to Kaiser at 4 p.m.
JUDO The third/second season of ILH judo opens with two girls and four boys matches at Hawai'i Baptist Academy, starting at 6 p.m.
TRACK & FIELD University of Hawai'i Rainbow Relays at Cooke Field, field events 5 p.m; running events 5:30 p.m.
GIRLS BASKETBALL ILH Division I: Kamehameha (4-0) at Mid-Pacific (3-1), Punahou (4-0) at Iolani (3-1), both 7:30 p.m.
JUDO OIA: Eight Western Division matches at Waipahu and 10 Eastern Division matches at Kailua, starting at 10:30 a.m.
TRACK & FIELD University of Hawai'i Rainbow Relays at Cooke Field, 9:30 a.m.
GIRLS WATER POLO The sport makes its debut in the O'ahu Interscholastic Association with 16 varsity teams playing games at Brigham Young University-Hawai 'i, Roosevelt and Kaiser, starting at 12:30 p.m.