The O'ahu Interscholastic Association girls volleyball playoffs are under way, with Red Conference (Division I) first-round matches held last night and White Conference (DII) first-round matches set for Tuesday.

Just like last year, a "modified double-elimination" format will be used. Last night's losers are eliminated, but starting with Tuesday's Red second round a team can work its way out of the losers' bracket and return to the championship semifinals.

Moanalua and Kahuku tied for first in the Red Eastern Division at 11-1, but Moanalua earned the No. 1 seed via a tiebreaker calculating a "higher percentage of (sets) won over total (sets) played." The teams split against each other.

'Aiea won the Red West with a perfect 12-0 record, and Pearl City was runner-up at 10-2. The top two seeds in each division earned first-round byes. Tuesday's second-round matches will be played at Moanalua and 'Aiea.

In the White Conference, Kailua (11-1) won the East and Kapolei (9-2) won the West.

In the Interscholastic League of Honolulu, Punahou (16-0) clinched the DI first-round title and an automatic state tournament berth with Tuesday's victory over Island Pacific. Hawai'i Baptist (14-2) clinched the DII first-round title and automatic state tourney berth with Tuesday's win over Christian Academy.

The ILH will begin its second-round tournaments on Tuesday.

'IOLANI-SAINT LOUIS GAME AUDIO AVAILABLE ONLINE

Tomorrow's ILH football showdown between 'Iolani (7-1 overall, 5-0 ILH) and Saint Louis (5-2, 2-2) will be broadcast live (audio only) at www.hawaiidigitalsports.com and www.espn1420am.com

Saint Louis is tied for No. 3 in The Advertiser's statewide Top 10 poll of coaches and media; 'Iolani is No. 6. Kickoff is scheduled for 7:45 p.m. at Aloha Stadium.

Read his blog on high school sports at http://preptalk.honadvblogs.com