The O'ahu Interscholastic Association Red boys' basketball tournament gets underway Tuesday with opening-round games at 6 p.m. at four different sites.

The top four seeds of the tournament - East champion Roosevelt and runner-up Kahuku, as well as West champion Radford and runner-up Mililani - draw first-round byes.

In Game 1, East fifth seed Kailua visits West fourth seed Campbell, while Game 2 has West sixth seed Wai'anae travelling to east third seed Kaimuki.

East sixth seed Kalani will play at Leilehua in Game 3 and West fifth seed Pearl City will visit East fourth seed Moanalua in Game 4.

Losers of Tuesday's game are done for the season, as the first round is the only portion of the tourney that is single elimination.

On Wednesday, the winner of Game 1 visits Roosevelt; the winner of Game 2 travels to Mililani; the winner of Game 3 goes to Kahuku; and the winner of Game 4 goes to Radford. All games are scheduled for 6 p.m.