Events to watch

These are some of the key matchups in high school sports on O'ahu this week (won-lost records are as of today):

TODAY

• BOYS BASKETBALL — Kamehameha (9-3 ILH) at Saint Louis (9-3), 6:30 p.m.

TOMORROW

• BOYS SOCCER — Meadow Gold Boys State Championship Tournament, first round at Waipi'o Peninsula Soccer Park: On field 7 — Kamehameha vs. Roosevelt, 1 p.m.; Kaua 'i vs. Moanalua, 3 p.m. On field 8 — Hawai'i Prep vs. Castle, 1 p.m.; Pearl City vs. Honoka'a, 3 p.m.
• SOFTBALL — Chevron State Championship Tournament, first round at Rainbow Wahine Softball Stadium: Lahainaluna vs. Leilehua, 1 p.m.; Hilo vs. Kapolei, 3 p.m.; Punahou vs. Waiakea, 5 p.m.; Mililani vs. Castle, 7 p.m.

THURSDAY

• BOYS BASKETBALL — OIA Championship Tournament, first round: At Castle, Mililani vs. Kahuku, 5 p.m.; Castle vs. 'Aiea, 6:30 p.m. At Pearl City, Kalaheo vs. Kapolei, 5 p.m., Pearl City vs. Moanalua, 6:30 p.m.
• BOYS SOCCER — Meadow Gold Boys State Championship quarterfinals at Waipi 'o Peninsula Soccer Stadium: Hilo vs. winner of Kamehameha-Roosevelt, 1 p.m.; Punahou vs. winner of Hawai 'i Prep-Castle, 3 p.m.; Baldwin vs. winner of Pearl City-Honoka 'a, 5 p.m.; Mililani vs. winner of Kaua'i-Moanalua, 7 p.m.
• SOFTBALL — Chevron State Championship Tournament, quarterfinals at Rainbow Wahine Softball Stadium: Waimea vs. winner of Mililani-Castle, 1 p.m.; Kailua vs. winner of Lahainaluna-Leilehua, 3 p.m.; Kamehameha vs. winner of Hilo-Kapolei, 5 p.m.; Baldwin vs. winner of Punahou-Waiakea, 7 p.m.

FRIDAY

• BOYS BASKETBALL — OIA Championship Tournament, quarterfinals: At Roosevelt, Leilehua vs. winner of Castle-'Aiea, 5 p.m., Roosevelt vs. winner of Mililani-Kahuku, 6:30 p.m. At Radford, Kaimuki vs. winner of Pearl City-Moanalua, 5 p.m.; Radford vs. winner of Kalaheo-Kapolei, 6:30 p.m.
• DIVING — Interscholastic League of Honolulu boys and girls championships at Iolani, 4 p.m.
• BOYS SOCCER — Meadow Gold Boys State Championship quarterfinals at Waipi 'o Peninsula Soccer Stadium: Semifinals, 6 and 8 p.m.
• SOFTBALL — Chevron State Championship Tournament, semifinals at Rainbow Wahine Softball Stadium, 6 and 8 p.m.
• SWIMMING — O'ahu Interscholastic Association boys and girls championships, qualifying heats at Kalani, 4 p.m.

SATURDAY

• DIVING — O'ahu Interscholastic Association boys and girls championships at Kaiser, 9 a.m.
• RIFLERY — Interscholastic League of Honolulu individual championships at Saint Louis, 8 a.m.
• BOYS SOCCER — Meadow Gold Boys State Championship game at Waipi'o Peninsula Soccer Stadium, 8 p.m.
• SOFTBALL — Chevron State Championship game at Rainbow Wahine Softball Stadium, 8 p.m.
• SWIMMING — O'ahu Interscholastic Association boys and girls championships at Kalani; Interscholastic League of Honolulu boys and girls championships at Iolani, both 2 p.m.
• WRESTLING — OIA boys and girls individual divisional championships, East at Kahuku, West at Mililani, 10 a.m.