The cheers for "Senior Night" for the Iolani girls volleyball team weren't nearly as raucous as the ones it received for beating Kamehameha.

Iolani remained the only undefeated Interscholastic League of Honolulu team, beating Kamehameha, 25-22, 25-23, last night at Iolani.

"We wanted to make it a memorable night for (the seniors)," Iolani junior setter Kapua Kamana'o said.

Iolani improved to 13-0 and remained alone atop the ILH standings with two matches remaining in the first round. Kamehameha dropped to 12-1. The ILH receives two berths for the Division I state tournament.

"I thought we were the underdogs tonight," senior Megan Burton said. "(Kamehameha) already proved they were worthy; they had already beaten Punahou.

"We weren't expected to win and it worked to our advantage."

Iolani, which played its final home regular-season match and said goodbye to Burton, Chelsea Ching, Tori Chun and Leigh Sumida, plays at Punahou (12-1) Friday.

Kamehameha opened Game 1 by scoring the first two points, but Iolani answered with six straight points, behind the serving of Leinani Keanini, who had an ace during the run.

"We had a hard time passing balls, and with serve receiving," Kamehameha coach Chris Blake said. "We need to do a better job with that if we get a chance to play them again. They put us into a lot of bad spots."

After the teams traded points, Iolani went on another four-point run to put it up 11-4. The Raiders had their biggest lead of the game at 16-8 on a kill by Lauren Minkel, but the Warriors answered with a four-point rally of their own, with two aces by Deven Bukoski, to bring them to within 16-12.

"Though we had good leads, I felt our concentration could have been better," Iolani coach Luis Ramirez said. "(The Warriors) were coming back, and they're monsters by the time they come around."

Iolani outscored the Warriors, 7-4, to give it a 23-16 lead. But Kamehameha, behind kills from Alexis Robins and Bukoski, a double block by Bukoski and Kea Kea and a backrow attack by the Raiders, climbed back to 23-20.

A Warriors' service error gave the Raiders game point, but they committed two errors to reduce their lead to 24-22. Senior middle Chelsea Ching ended the game with a kill.

"It's always been a challenge for us; we start out strong and we hit the midpoint, the 18s, 20s, and stall," Burton said.

In Game 2, neither team separated itself. Iolani went up 7-4 behind the serving of Keanini, who had two aces.

"I stressed the importance of winning in two (games)," said Ramirez, who gave a lot of credit to freshman libero Kelly Pang. "If you can, get the win right away and take it while you can."

Kamehameha went up 15-14 on a block by Bukoski and Kea. There were six more lead changes the rest of the way with Iolani going up for good on a Minkel kill, to make it 23-22.

Burton ended the match on one of her many tips of the evening, placing the ball into the front right corner. Kamehameha couldn't cover, as its players dived for the ball but couldn't keep it alive.

"We had practiced it a lot," Burton said of the soft shot. "A tip is just as good as a kill. (Kamehameha) knows I love to hit cross court. They were there, two blocks up, taking it away."

Kanani Herring led the Warriors with seven kills and Alexis Robins added five.

Burton led Iolani with nine kills, and Minkel added seven.

Reach Leila Wai at lwai@honoluluadvertiser.com.