South Korea's Sun-Ju Ahn won the Toto Japan Classic on Sunday beating countryman Ji-Hee Lee and American Angela Stanford with a birdie on the first hole of a play-off.
The 28-year-old finished with a five-under-par 67 to match Stanford with a 67 and Lee 66 at 16-under 200. Ahn began the final day two shots off the lead in a tie for third.
On the 18th hole, Ahn missed a 13-foot birdie putt that would have given her the win but got the victory when given another go at the hole in the play-off.
Stanford, who has won five LPGA Tour titles, last won in 2012.
Second round leader Jenny Shin of South Korea shot a 70 to finish a stroke back.
Thailand's Ariya Jutanugarn shot the best round of the week with a 64 to finish fifth at 14-under.
World number three Stacy Lewis, who shot a 68, and No.4 Lexi Thompson on 69, finished at 12-under.
The US President was among the viewers watching the TaylorMade Driving Relief.
The US President phoned in as McIlroy played in a Sunday fundraiser for coronavirus victims.
Syme donated his prize money to charity.
‘This is the life of a caddie…’
The Northern Irishman is ranked number one in the world.
Players entering the United States will face a 14-day quarantine period, while a strict testing regime will be in place at each tournament.
The experienced duo will be involved at Whistling Straits.
The world number 98 intends to split the 10,000 euros prize money between his own charity and a hospital in his native Rotterdam.
The biennial event between Europe and the United States is scheduled to take place from September 25-27.