Jennifer Ha of Calgary, Alberta, defeated top seed Kendall Prince of Corvallis 7-and-6 in their Round of 16 match at the 112th Pacific Northwest Womens Amateur at Wine Valley Golf Club in Walla Walla.
Prince shot a womens course record of 5-under par 67 Tuesday during stroke-play qualifying but couldnt hang on against Ha, a big-hitting junior at Kent State University who claimed medalist honors at the Mid-American Conference Championship in May. Ha came into the tournament as the No. 16 seed.
The qualifying field of 64 was cut to 16 after two rounds of match play.
Prince topped Richlands Hope Neidhold, the No. 32 seed, 6-and-5 in the Round of 64. Another Richland native, No. 23 seed Kristin Strankman, fell to No. 10 seed Kristen Rue of Gig Harbor 3-and-1.
The highest remaining seed is No. 2 Monica Vaughn, of Reedsport, Ore., who topped Cassandra McKinley of Shorline 5-and-4 to advance to the Round of Eight.
The biggest upset of the day belonged to No. 28 seed Morgan Thompson of Tualatin, Ore., who earned a 3-and-1 victory over No. 5 seed Katie Lee of Silverdale in the Round of 32, thanks to a hole-in-one on the 165-yard No. 6 hole. Thompson later topped No. 12 seed Rachel Lewis of Gig Harbor 4-and-3 in the Round of 16.
In the PNW Mid-Amateur Championship also at Wine Valley, Dona Dunovant of Walla Walla advanced to the Round of Eight with a 20-hole win over Sun Douthit of Steilacoom. Dunovant is a No. 4 seed.
Two other Walla Walla players, Tiffany Buissink and Sarah Michelson, faced each other in the first flight quarterfinal, with Buissink winning 7-and-6.
Quarterfinal matches will begin at 7:30 a.m. today, followed by semifinal matches.