SEATTLE » Kaia Parnaby’s trusty left arm finally failed her Sunday afternoon, and the Hawaii Rainbow Wahine softball season crash-landed when they were held hitless in an 8-0 loss to Washington in the championship game of the Seattle Regional.

Bryana Walker, Washington’s No. 2 pitcher, struck out 12 — including eight straight at one point — before the NCAA tournament game was called after five innings due to the eight-run rule.

"I’m ecstatic; I can’t stop smiling," Walker said.

The same could not be said for Big West Conference champion Hawaii, which finished 45-13.

"It sucks that it was the last game," Parnaby said with a feeble smile.

Parnaby, who had thrown complete games in Hawaii’s three other regional games the previous two days, was yanked with two out in the third inning after the second of two home runs that inning pushed the Huskies ahead 5-0.

"They’re good hitters," said Parnaby, who started the day tied for the NCAA Division I lead with 39 wins. "They see a pitch and they hit it."

The Huskies, seeded first in Seattle and 11th overall in the 64-team NCAA tournament, improved to 41-15. Washington travels to Columbia, Mo., next weekend to face sixth-seeded Missouri (38-12) in a Super Regional.

Hawaii, a team that usually hits for average and power, scored just six runs in splitting four games in Seattle. Kaitlin Inglesby, Washington’s No. 1 pitcher, tossed a two-hitter Saturday in a 2-0 victory in the Rainbow Wahine’s other regional game against the Huskies.

"We checked out our bats somewhere along the line and couldn’t find them," Hawaii coach Bob Coolen said.

Parnaby, who lost just seven times during a spectacular senior season, was 0-3 in three starts against Washington (including a February game at Hawaii). The Huskies came into the tournament ranked 23rd in Division I with a .315 team batting average.

The Huskies were the only team to go unbeaten in the first two rounds of the Seattle Regional, so the second-seeded Rainbow Wahine needed to beat Washington twice Sunday to earn a Super Regional berth. Walker (17-7) wasn’t about to let that happen.

"I’ve been here (in NCAA tournament games) before; I knew what this was about," said Walker, a junior right-hander. "I knew my team needed me to step up."

Jessica Iwata, Hawaii’s standout senior shortstop from Lihue, said Walker "changed speeds really well and kind of got us to chase balls out of the zone."

Washington had the luxury of saving Inglesby’s pitching arm for Sunday’s if-necessary second game. The All-Pac-12 pitcher served as the designated hitter in the title game and went 3-for-3.

Inglesby’s two-run homer to center started the scoring. Four batters later, Whitney Jones blasted a three-run homer to right to chase Parnaby, who threw 317 pitches in Hawaii’s first three regional games.

A few fans in the crowd of 992, including some Washington fans, gave Parnaby a standing ovation when she exited on a cool, overcast day.

"Kaia’s a competitor," Iwata said. "I’m actually really proud to be her teammate these last four years. She’s amazing."

So are the Huskies, who have just three seniors and start only one of them. Washington tied Arizona State for second place in the Pac-12, a perennial softball power that has produced six of the past seven NCAA softball champions.

‘Iolani graduate Kimberlee Souza started at third base for the Huskies and went 1-for-2.