It was the first time Saint Louis was shut out since 1990, when Canyon Country of California beat the Crusaders, 40-0, and stopped the Saints' 55-game win streak. The last O'ahu team to shut out Saint Louis was Damien, which won 2-0 in 1982.

An Aloha Stadium crowd of 4,946 watched the Warriors (7-1-1 overall, 5-1 ILH) clinch at least a tie for the league's Division I title. They can win it with a victory Friday against Pac-Five at the Warriors' stadium. If Iolani beats Punahou earlier on Friday, a playoff for the overall ILH title will be played the following week. Saint Louis (6-3, 4-2) needs to beat Damien on Friday and needs the Warriors to lose to stay alive.

"This is just awesome," Kamehameha center Tyler Williams said. "A lot of hard work finally paid off."

For decades, the Crusaders have been the Warriors' nemesis.

"It's always disappointing when you lose, but that's part of the game," Saint Louis coach Delbert Tengan said. "We gave it our best shot and it wasn't good enough tonight."

The Warriors know it is premature to celebrate. Although Pac-Five is 0-5-1 in the ILH, the Warriors aren't taking any chances.

"This isn't over," Warriors coach Kanani Souza said. "All this does is give us an opportunity to keep on playing. In order to do that, we have to keep on playing good."

The win avenges a heart-breaking 21-20 loss to Saint Louis in the first round. An unsportsmanlike conduct penalty — after a Kamehameha touchdown pulled the Warriors to within one — set up the PAT from 35 yards out. They missed it.

Ironically, last night's game opened with the same situation. The Warriors scored on 33-yard TD pass from Pono Kam to 6-foot-3 receiver Waika Spencer. Spencer and Saints defensive back Tyson Marks went up for the ball at the 3. Spencer juggled the ball, but gained control of it just as he crossed the plane of the end zone. But an unsportsmanlike conduct penalty put the PAT try at the 35, where again the Warriors missed.

But the Warriors' defense never relented. The deepest Saint Louis pushed into Warriors territory was to the 25, where it attempted a 42-yard field goal. But Gagamoe Manuma blocked it, preserving the shutout.

Kamehameha's defense produced four interceptions. Travis Uale literally picked the ball from Saint Louis receiver Cameron Bayne after a pass from Cameron Higgins, giving Kamehameha the ball at its 15. Five plays later, running back Jayson Rego went off left tackle for a 78-yard TD run to make it 12-0. A 2-point try failed.

An interception by Saint Louis' Joseph Medeiros off Kam gave the Crusaders possession at the Kamehameha 47. But five plays later, Kamehameha defensive back Brad Nakamura returned the pick 77 yards for a touchdown that essentially saved it for the Warriors.

"I just saw it all the way," Nakamura said. "It was just technique."

The Warriors controlled the line of scrimmage behind center Williams, guards Kepa Gaison and Kahawai Soon and tackles Ryan Pohl and Hayden Kahele, allowing Rego to rush for 192 yards on 25 carries.

Saint Louis finished with 240 yards in offense, about 126 less than its season average.

Reach Stacy Kaneshiro at skaneshiro@honoluluadvertiser.com or 525-8042.

SAINT LOUIS (6-3, 4-2) 0 0 0 0— 0
KAMEHAMEHA (7-1-1, 5-1) 6 0 6 6 —18

Kam—Waika Spencer 33 pass from Pono Kam (kick failed)

Kam—Jayson Rego 78 run (pass failed)

Kam—Brad Nakamura 77 interception return (kick failed)

RUSHING—Saint Louis: Cameron Higgins 1-1 Kevin Sullivan 19-38, Aaron Bain 2-2, Shaun Kauleinamoku 1-7. Kamehameha: Pono Kam 3-0, Rego 25-192, Ryan Montez 2-2, Jeremiah Dela Pena 1-1, Ikaika Hardie 1-(minus 10), Tyson Fujimoto 4-16.

PASSING—Saint Louis: Higgins 14-34-4—192.

Kamehameha: Kam 12-18-1—132.

RECEIVING—Saint Louis: Shane Perry 4-62, Kauleinamoku 7-103, Bain 1-4, Matthew Zablan 2-23. Kamehameha: Kamuela Kapanui 3-22, Aaron Nichols 1-16, Spencer 3-51, Hardie 5-43.