GURNEE, Ill. — South Korea completed a rain-delayed sweep of Australia in the UL International Crown on Sunday, and Japan won a three-team playoff for the final spot in the singles session.

The pair of wins gave South Korea a Pool A-best eight points, just one back of England for the top spot. After Saturday’s play was suspended due to thunderstorms, Sei Young Kim and So Yeon Ryu finished off a 3-and-2 victory over Australia’s Karrie Webb and Rebecca Artis, and Amy Yang and In Gee Chun secured a 1-up win against Minjee Lee and Su Oh.

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England, the United States and Taiwan qualified for Sunday’s 10 singles matches before rain interrupted the third session, and Japan grabbed the last spot when Ayaka Watanabe eagled the par-5 16th in a playoff with Thailand and China. Thailand’s Ariya Jutanugarn almost sent the playoff to another hole, but she just missed on her own eagle attempt.

“Sure, I thought it went in, but it’s not,” Jutanugarn said. “I do my best and we try to do our best.”

Japan was swept by the United States in Saturday’s four-ball matches at Merit Club, about 40 miles northwest of Chicago.

“We were all disappointed yesterday, so being able to advance is like getting revenge for all that and getting it all cleared up to go into the singles,” Watanabe said.

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The country with the most points at the end of the weekend wins a silver trophy, to go along with $100,000 and a crown for each of its four players. Spain won the inaugural event in Maryland in 2014, but it did not qualify this time around.