Allisen Corpuz admittedly had some trouble reading the greens at Ko Olina Golf Club in recent rounds.

The Punahou senior deciphered them in time to earn her first appearance in an LPGA Tour event.

Corpuz drained a 15-foot par putt with her final stroke of regulation to force a playoff in Sunday’s Lotte Championship local qualifier. Playing No. 18 a second time, she curled in a birdie putt from about 10 feet away to secure the final berth in the 144-player field.

“It’s crazy,” Corpuz said after a wild 20-minute swing. “It’s definitely something I’ve dreamed about ever since I was younger. I’m really excited and just trying to see how well I can play this week.”

Corpuz preceded her two turns on 18 with a 6-foot birdie on No. 17 and made her final two putts of the afternoon to earn a tee time on Wednesday for the tournament’s opening round.

Symetra Tour member Ashleigh Albrecht claimed medalist honors in the qualifier at 1-under par 71 with Corpuz and Katelyn Wright one stroke back.

With Wright already in at 72, Corpuz joined her by saving par on 18 after leaving a chip on the edge of the green.

“I’ve been struggling with reading the greens. I feel like they’ve been breaking more because they’ve been speeding them up,” Corpuz said. “So I took a little bit of extra break and then I took a good stroke.”

Going back to the tee, Corpuz striped her drive down the middle of the fairway, then pulled out a 4 iron from 163 yards out to take the 18th hole’s distinctive pond out of play. Her approach into the wind landed on the edge of a ridge running across the tiered green and rolled back close to pin high to set up the decisive birdie.

“That’s exactly where I wanted to hit it because I know it funnels left and I definitely have to say the water’s a little scary,” Corpuz said.

Wright’s approach ran through the green and her downhill putt from the fringe slid about 8 feet past the hole. Corpuz didn’t give her a look at making par, adding to Punahou’s already prominent presence in the tournament field.

Corpuz joins a local contingent that includes Punahou graduates Michelle Wie and Stephanie Kono and will be one of three amateurs entered.

“I’ve been putting a lot of work into my swing and my short game and I’ve been changing a couple of things with my putting,” said Corpuz, who signed with USC last fall. “For me it was really just trying to trust everything. So I’ve been playing pretty well for the past couple of weeks and trying to put everything together.”

Albrecht, who played her college golf at Kentucky, was one of the early finishers in the 17-player qualifier and waited around to see if her round would hold up.

She visited Oahu last November without her clubs while recovering from an injury and returned for the qualifier at her father’s suggestion.

“I wasn’t planning on playing out here,” Albrecht said of her first trip to Hawaii last fall. “I put the clubs away for two months and enjoyed an actual vacation.”

She began working her way back in January “and I found the love for it again,” Albrecht said. “Sometimes you just have to take time off.”

Albrecht and Corpuz claimed places in a field headlined by world No. 1 Lydia Ko.

Ko has spent the past 24 week atop the Rolex Women’s World Golf Rankings, solidifying her hold on No. 1 by winning the past two tournaments, and returns to Ko Olina after skipping the event last year.

Seven of the top 10 are entered, with Ko followed in the world rankings by Inbee Park and Lexi Thompson.

Fifth-ranked Sei Young Kim returns to defend the Lotte title she won in dramatic fashion last year. Kim chipped in on the 18th hole to force a playoff with Park, then holed out an 8-iron from the fairway for eagle to win.

Past champions Ai Miyazato (2012) and Suzann Pettersen (2013) also are entered.