HONOLULU -- Once Stanford got through a difficult opener, the rest of its trip to Hawaii was a breeze.

Jillian Harmon scored 18 points in the first half and No. 5 Stanford rolled to an 83-54 victory over Hawaii on Sunday to finish 3-0 at the Waikiki Beach Marriott Classic.

Jayne Appel added 16 points on 8-of-8 shooting and grabbed five rebounds for the Cardinal (6-1), who shot 56 percent from the field and led by as much as 37 with 2 1/2 minutes left.

"We just came out with the mentality to get it done early and really put the hammer down, really not mess around at all and get done with business here and head back home," Appel said.

Stanford coach Tara VanDerveer called Appel "unstoppable."

"She's too big for them to guard," she said.

Appel said her shooting made up for her 2-of-11 performance in the first half against Purdue on Friday.

Sarah Boothe, a reserve, scored 14 points, all in the second half. With mostly backups in, Stanford went on a 28-9 run to start the second half and open a 69-33 lead.

Harmon, who played just 1 minute in the second half before being sidelined with back spasms, scored Stanford's first nine points as the Cardinal jumped out to an 11-2 lead.

Harmon was on pace to break her career high of 22 set in January 2006 at Oregon State but ended up playing just 18 minutes.

"We don't have a game for another two weeks. I hope it's nothing serious," VanDerveer said. "She played great."

The Cardinal are already without starting point guard for JJ Hones for the rest of the season after she injured her knee a week ago in an 81-47 win against Rutgers.

Stanford, which led 41-24 at halftime, was just too tall, too fast and too talented for Hawaii.

"(Hawaii) played very hard," VanDerveer said. "They're very scrappy. They didn't let us do everything that we wanted to do, but we were able to get nice shots against them."

It was the second-straight blowout for the Cardinal, who defeated No. 25 Iowa State 83-45 on Saturday night. They needed overtime to beat No. 19 Purdue 78-70 on Friday.

"We actually look at (the lopsided wins) more as a chance to play Stanford basketball," Appel said. "We want to keep doing exactly our offense is made to do and keep creating. It just allows us to set on our own pace. It also gets everyone else in the game."

VanDerveer said playing reserves is valuable because it motivates everyone to work hard in practice and gives the team more confidence.

The Cardinal's only problem was their long-range shooting; they went 6-for-25 from beyond the arc.

Stanford was the only unbeaten team in the tournament but no winner was declared because there were only six teams in the event after two dropped out.

Sara Ilic had 15 points and four steals for the Rainbow Wahine (0-6), who committed 28 turnovers.