Thompson's impressive play at the championship includes six birdies and a bogey-free front nine, showcasing her skill and strategic approach to the game.
Poston shot an 8-under 62 for a one-stroke victory at the tour's regular-season finale. Became the first player since 1974 to win an event on tour without any bogeys or worse.
Brook Koepka had three birdies in a four-hole stretch on the front nine and out duels Rory McIlroy with a three-stroke win in the FedEx St. Jude Invitational.
Sei Young Kim won the Marathon Classic for her second LPGA Tour victory of the season, making five straight birdies, shooting a 6-under 65 for a two-stroke win.
Leaving the flagstick in, she rolled in her final birdie putt for a 9-under 63 and a one-shot victory over Jutanugarn, who had hit 8-iron to 3 feet for birdie and a 64.
Cantlay had a blast Sunday with the best closing round by a winner in the 44 years of the Memorial. He rallied from four shots behind with an 8-under 64,
Ryan Moore opened with five birdies in seven holes and never missed a fairway after the first one, posting a 7-under 65 for his best start at Muirfield Village.
McIlroy made two late birdies to regain the lead, was at his best when the pressure was the highest, and he closed with a 2-under 70 for a one-shot victory at the TPC.