Kiki Bertens lifted the Western and Southern Open trophy by beating Simona Halep in a brilliant final - and now she rises to a new career high.
The Dutchwoman climbs four places to take her place as the new World No.13 after a week in Cincinnati in which she also beat both Petra Kvitova - back in the top 5 this week - and Caroline Wozniacki.
Here are some of the week's other most notable rankings movers:
Aryna Sabalenka (+9, No.34 to No.25): The unseeded Belarusian made it to the semifinals in Cincinnati after a terrific campaign in which she downed Johanna Konta, Karolina Pliskova, Caroline Garcia, and Madison Keys.
Lesia Tsurenko (+9, No.44 to No.35): The Ukrainian pulled off a shock by beating former World No.1 Garbiñe Muguruza in the Cincinnati Round of 32.
Rebecca Peterson (+13, No.72 to No.59): The Swede reaches a career-best ranking after fighting through Cincinnati qualifying, falling in the Round of 32 to Elise Mertens, the 15th seed.
Tatjana Maria (+18, No.85 to No.67): The 31-year-old was another to progress through Cincinnati qualifying to fall to a seed at the Round of 32 stage - in her case third seed Sloane Stephens.
Victoria Azarenka (+7, No.87 to No.80): It is another jump up the rankings for the former World No.1, who beat Carla Suarez Navarro in the Cincinnati first round and then lost to Caroline Garcia 6-4, 7-5.