Elena Oglivie said her ‘Iolani Raiders didn’t get into a consistent flow, but that’s only because the defending state champions have certain standards.

The runner-up from the Interscholastic League of Honolulu got 15 kills from Oglivie and a balanced offensive attack in a 25-9, 25-17, 25-19 sweep of Waianae on Monday night at Father Bray Athletic Complex in the opening round of the New City Nissan/HHSAA Girls Volleyball Division I State Championships.

‘Iolani (7-7) will meet Maui Interscholastic League champion Kamehameha-Maui on Thursday in the quarterfinal round at Moanalua High School gym at 5 p.m. Waianae, the fourth-place team from the Oahu Interscholastic Association, finished 10-5 in its first season at D-I after winning the league’s D-II title in 2016.

Oglivie had nine of her kills in the final set, while middle Sasha Petticord flared nine kills and Saige Ka‘aha‘aina-Torres tallied eight kills, an ace and a block. Setter Kristen McDaniel dished 34 assists and added two kills and an ace. It was as much an outstanding defensive performance by Naya Dong, Grace Wee and Oglivie as much as it was pure setting and hitting.

“We weren’t hitting efficiently, but we were executing,” said Oglivie, the returning Star-Advertiser All-State player of the year. “We got our confidence back (in Game 3). Kristen did a good job setting.”

Waianae got seven kills from senior middle Jasmine Fonoti and five kills by classmate Tayzia Pakele. Alexus Kapihe tallied four kills and one block, and Ene‘e Tiolu chipped in three. Senior setter Jorene Ulu had 17 assists, one kill and one ace on a night when three starters were not present due to disciplinary action.

“We played ‘Iolani in preseason at Kamehameha’s tournament and they were no pushover team. They’re strong and consistent,” said Seariders coach Wilhelm Wagner, who guided the program’s transformation to D-I. “(Oglivie) got warmed up and let loose. I thought we did a pretty good job containing the middle.”

The home team roared to a 5-0 lead, then expanded that to 17-3 in the opening set. The visitors, who made their way across the island on a rainy late afternoon, got into a rhythm at the start of the second set. With Pakele, Fonoti and Kapihe warming up, Waianae opened a 9-4 lead before the Raiders called time out.

“What we’d seen on tape is that they get some momentum waves and you saw that in Game 2,” Raiders coach Kainoa Obrey said. “They’re very capable.”

‘Iolani chipped away and used its serve to turn the game back in its favor. Down 12-11, the Raiders went on a 9-3 run behind kills from Petticord, a 6-foot-2 junior; Ka‘aha‘aina-Torres; and Cameryn Ann Nagaji. After Nagaji, a 5-7 middle, pounded one of her three kills during the set — opening the lead to 18-14 — the ‘Iolani bench erupted.

The Seariders got no closer than a five-point margin after that.

Waianae kept it close in the third set, pulling within 9-8 after two Raiders miscues, but the home team went on an 11-4 run to put the game out of reach. Oglivie mixed roll shots with cutbacks and bombs as the Raiders caught fire and eliminated the Seariders.

For the match, ‘Iolani hit .403 with five aces and five service errors. Waianae hit .167 with two aces and three service errors. The Raiders had a 4-2 edge in blocks.