Parity abounds in this year's Wally Yonamine Foundation/Hawai'i High School Athletic Association Baseball Championships, and the proof is in black and white:

Pearl City, which went 15-0 in the O'ahu Interscholastic Association, is the lone unbeaten squad in the 12-team field.

The Chargers remained undefeated only after a 2-1 victory over Kailua in the OIA title game, scoring the winning run with one out in the bottom of the seventh inning.

With no truly dominant pitcher, every team is beatable and yet every team seems capable of making a run at the crown.

The action begins with four first-round games at Les Murakami Stadium.

Following is a capsule look at all 12 Division I teams (records are for regular and postseason only):

CAMPBELL

Coach: Rory Pico.

Record: 9-6.

Berth: OIA fourth place.

Notable: The Sabers took second in the OIA West but stumbled a bit in the league playoffs, needing 10 innings to squeak past Kaiser, 5-4, in the quarterfinals, getting 10-run ruled in a 16-6 semifinal loss to Kailua and squandering a 7-4 lead to Moanalua before losing, 8-7, in the third-place game. But the size and talent is there. Damien transfer Michael Memea and senior catcher Keanu Kapana provide middle-lineup power, and Nicholas Tiglao, Charles Ka'alekahi and Robert Kahana also can put hits together.

HILO

Coach: Warren Arakaki.

Record: 13-1.

Berth: BIIF champion.

Notable: The Vikings won their first league title since 2002 by beating Waiakea, 8-3, in the season finale on April 27. Left-hander Kendal Ushijima can be crafty, and Dustin Tagawa is another solid starter. Dustin Devera is an effective closer and also contributes as a hitter. Shortstop Ryan Fukunaga, first baseman Geonah Ragual and outfielder Devon Kell lead a veteran lineup.

'IOLANI

Coach: Dean Yonamine.

Record: 18-4.

Berth: ILH champion.

Notable: The Raiders won their first league title since 1997, with a little bit of everything: solid pitching, power hitting and execution through the lineup, consistent defense. Senior center fielder Breland Almadova, a University of Hawai'i signee, led the ILH with nine home runs and has turned into a reliable closer. Starting pitchers Sheldon Lee and JR Bunda offer different looks for batters, as does reliever Jarrett Arakawa. First baseman Reyn Nagamine and third baseman Buen Hatanaka are dangerous sluggers.

KAILUA

Coach: Corey Ishigo.

Record: 11-4.

Berth: OIA runner-up.

Notable: Ishigo brings another scrappy, dangerous team to the tournament. Kale Sumner, a 2008 Advertiser All-State first team third baseman, has played catcher and right field and is one of the state's most feared sluggers. He will play for Hawai'i Pacific next season. Senior Bryson Gauthe has provided quality starting pitching, and sophomore pitcher Alika Ramseyer-Ho has been effective in relief and also as a power bat in the middle of the lineup. Another sophomore, Ryan McMonigle, also contributes on the mound and at the plate. Second baseman Jared Iha, a junior, already is a three-year starter. Keoki Reis-Moniz has hit well in the postseason.

KAMEHAMEHA

Coach: Vern Ramie.

Record: 16-5.

Berth: ILH runner-up.

Notable: The Warriors won the ILH tournament and fell just short in a winner-take-all game for the overall title, losing to 'Iolani, 4-2. Front-line starters Chris Pascual and Alika Pruett should be ready today and tomorrow, and reliever Harley Holt showed on Saturday (5 2/3 shutout innings) he also can be counted on. Senior shortstop Pi'ikea Kitamura is stellar on defense and at the plate; he has signed with UH. Arlie Johnson and Kalei Hanawahine have provided clutch hits recently.

KAMEHAMEHA-MAUI

Coach: Brandon Kanamu.

Record: 11-4.

Berth: MIL champion.

Notable: The Warriors have come on strong, stealing the league's overall title from regular season champ Maui with two tournament wins and a 4-3 victory in the winner-take-all playoff on April 27. Senior pitcher Dayton Alexander had a 1.68 ERA in MIL play and contributed at the plate with 11 RBIs and eight walks. Fellow senior Isaiah Kaneakua went 3-2 with a 2.74 ERA and also drew eight walks. The bottom of the order has been productive: No. 7 hitter Naea Kalehuawehe batted .542 and No. 8 man Evan Garces hit .452.

MAUI

Coach: Lee Yonamine.

Record: 11-4.

Berth: MIL runner-up.

Notable: The Sabers won the MIL regular season but lost twice in the league tournament and fell to Kamehameha-Maui in the winner-take-all playoff. Senior pitcher/infielder Peter Ibanez had a 3.14 ERA in MIL play and batted .313. Junior Alika Aheong posted a 1.20 ERA. Tevan Masulit-Devera batted .444, Isaiah Diaz hit .400, David Sifton batted .389 and Hawai'i Pacific-bound catcher Jordan Inamasu hit .378.

MILILANI

Coach: Mark Hirayama.

Record: 9-7.

Berth: OIA fifth place.

Notable: The Trojans finished as the No. 4 seed in the OIA West but earned a state berth by beating Castle in the first round of the league tournament and then Kaiser and Kalani in the fifth-place bracket. Seniors Preston Pacolba and Joey Aquino are effective starters and classmate Travis Inouye a capable closer. Aquino, Travis Goto and Chad Bolibol provide power in the middle of the lineup. The defense is solid all-around.

MOANALUA

Coach: Scott Yamada.

Record: 11-4.

Berth: OIA third place.

Notable: Na Menehune are scrappy, a tough team even in defeat. Sophomore Tim Arakawa is the last in a line of baseball brothers, and like his siblings, he can hit. Miles Higa and Landon Yoshikawa also have hit well in the postseason. Zachary Manago is a reliable starter, and Dae Yang Kim, a 6-foot-4 sidearm pitcher, presents a different look for batters.

PEARL CITY

Coach: Gary Nakamoto.

Record: 15-0.

Berth: OIA champion.

Notable: The state's only team to go undefeated in league play has done so on the strength of a deep pitching staff, solid defense and timely hitting. Kahana Neal, Jordan Schweitzer, Kawika "Sumi" Pruett and Micah Nakasone can all be called on to start or pitch in long relief. Catcher Carlton Tanabe is an excellent receiver who can shut down an opponent's running game, and he also has become a consistent and dangerous power hitter. Chace Numata (shortstop) and Bronson Oda (right field) play solid defense and have delivered some clutch hits in the postseason.

PUNAHOU

Coach: Eric Kadooka.

Record: 11-8.

Berth: ILH third place.

Notable: The five-time defending state champions enter this year as a dark horse, having gone 8-6 in the regular season and earning their berth only after a two-out, RBI single in the bottom of the eighth to beat Mid-Pacific, 6-5, in the ILH third-place game. The pitching has improved, with sophomore Marcus Yoshii providing quality starts and senior Jeremy Fujimoto adding clutch relief. Senior Evan Lim, a veteran pitcher/first baseman, injured his right ankle in Thursday's MPI game. The Buffanblu have gotten clutch, late-inning hitting from top to bottom. Designated hitter Alaka'i Aglipay has had a hot bat, as has catcher Tyler Young and center fielder Michael Suiter.

WAIAKEA

Coach: Gordon Mau.

Record: 11-3.

Berth: BIIF runner-up.

Notable: The Warriors are making their seventh straight state tournament appearance. Matt Loeffler, a 6-foot-3 junior pitcher/outfielder, can make an impact on the mound or at the plate. Sheldon Shishido (6-0) and Michael Kenui (5-10) also pitch. Jared Shiroma plays shortstop and bats leadoff.