The OIA baseball playoffs are always a wild four-day event with this year expected to be no different.
The semifinals and final in Division I and the championship game in Division II will be held at Les Murakami Stadium.
Defending OIA champion Kailua is the No. 1 seed out of the East while Campbell, which won three consecutive OIA titles prior to last season, is the top seed out of the West. Waianae ran through Division II with a perfect 10-0 record to claim the top spot in that six-team playoff.
The complete playoff schedule for both Division I and Division II can be found below.
The first-round games will be played at the home field of the higher seed.
The top six teams in Division I and the top three teams in Division II will advance to the state tournament April 26-29. Updated: Apr. 17
| DIVISION I | |||
| Date | Home | Visitor | Time/Result |
| First round | |||
| 4/12 | (E4) Kaiser | (W5) Aiea | Kais, 9-5 |
| 4/12 | (W3) Kapolei | (E6) Castle | Kapo, 11-1 (6) |
| 4/12 | (E3) Moanalua | (W6) Waipahu | Moan, 9-1 |
| 4/12 | (W4) Pearl City | (E5) Roosevelt | PC, 2-1 |
| Quarterfinals | |||
| 4/13 | (W1) Campbell | Kaiser | Camp, 4-2 |
| 4/13 | (E2) Kalani*** | Kapolei | Kaln, 6-5 (9) |
| 4/13 | (W2) Mililani | Moanalua | Mil, 3-2 (8) |
| 4/13 | (E1) Kailua | Pearl CIty | Kail, 3-2 (10) |
| Consolation semis | |||
| 4/14 | Moanalua | Pearl City | Moan, 5-2 |
| 4/15 | Kapolei | Kaiser | Kais, 4-0 |
| Semifinals | |||
| 4/14 | Kailua** | Mililani | Kail, 13-3 (7) |
| 4/14 | Campbell** | Kalani | Camp, 11-1 (6) |
| Fifth place | |||
| 4/17 | Moanalua | Kaiser | Moan, 10-3 |
| Third place | |||
| 4/15 | Mililani | Kalani | Mil, 6-4 |
| Final | |||
| 4/15 | Kailua** | Campbell | Kail, 6-5 (8) |
| DIVISION II | |||
| Quarterfinals | |||
| 4/14 | Nanakuli | Kaimuki | Kaim, 7-2 |
| 4/13 | Farrington* | Kahuku | Far, 13-3 (5) |
| Semifinals | |||
| 4/14 | Waianae | Kaimuki | Wain, 3-2 |
| 4/14 | Radford | Farrington | Rad, 5-4 |
| Third place | |||
| 4/15 | Farrington | Kaimuki | Farr, 6-2 |
| Final | |||
| 4/15 | Waianae** | Radford | Wain, 6-4 |
| * — @ DeSa Field | |||
| ** — @ Les Murakami Stadium | |||
| *** — @ Kaimuki | |||
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