Amidst her decisive role in the destination of the No.1 ranking, it should not be forgotten that Karolina Pliskova is playing the best tennis of her career. And she has the ranking to show for it.
WTA Staff

Over the past month Karolina Pliskova has played a central role in one of the summer's most fascinating storylines: the battle for No.1.

As she had in Cincinnati, Pliskova's actions proved decisive at the US Open, a stunning upset of six-time champion Serena Williams confirming that Angelique Kerber would reach top spot for the first time.

Amidst all this, it should not be forgotten that Pliskova is also on the rise, playing the best tennis of her career. And she has the ranking to show for it.

While defeat in the final to Kerber denied the willowy Czech a Top 5 debut, it could not prevent her rising to a career-high No.6 in the rankings. And with several of those above her in the rankings having significant points to defend between now and the end of the season, a productive stay in Asia could well see Pliskova rise further.

Pliskova, though, was not the only one eagerly awaiting the release of the new rankings...

Carla Suárez Navarro (+4, No.12 to No.8): After cruising to the last 16, Suárez Navarro produced an unusually subdued showing in defeat against Simona Halep at Flushing Meadows, a setback that will be comforted somewhat by her return to the Top 10.

Caroline Garcia (+11, No.33 to No.24): For the second time in three majors, Garcia's challenge was ended by the wiles of Agnieszka Radwanska, however, hard-fought wins in her first two matches were enough to reach a career-high No.24.

Timea Babos (+8, No.34 to No.26): Also performing well in New York was Babos, whose first third-round appearance at an event of this stature was rewarded with a career-high ranking.

Caroline Wozniacki (+25, No.74 to No.29): After a campaign hampered by injury, Wozniacki provided a timely reminder of her considerable talents, counterpunching masterclasses against Svetlana Kuznetsova and Madison Keys taking her back to the Flushing Meadows semifinals and the Top 30.

Anastasija Sevastova (+16, No.48 to No.32): Sevastova made a lot of friends in New York with her fearless performances on the court and candid words in the press room. Victories over Garbiñe Muguruza and Johanna Konta caught the eye as she reached a maiden Grand Slam quarterfinal   

Ana Konjuh (+40, No.92 to No.52): Three years after lifting the junior US Open trophy, Konjuh made waves in the senior event, upsetting Radwanska to reach the quarterfinals. The result catapulted her back up the rankings and within touching distance of a Top 50 debut.

Naomi Osaka (+12, No.81 to No.69): Tempering the disappointment of a painful third-round exit to Madison Keys at Flushing Meadows was a career-high ranking as Osaka continues to close in on the Top 50.

Duan Ying-Ying (+11, No.103 to No.92): Although Duan's homecoming at the WTA125K in Dalian ended earlier than expected, a run through qualifying to the second round in New York was enough to bring a Top 100 debut.

While in doubles...
The failure of Martina Hingis, one half of last year's US Open winning team, to reach the final alongside new partner CoCo Vandeweghe ensured the other half, Sania Mirza, hung onto the doubles No.1 ranking. The US Open fortnight were her 71st and 72nd week on top - only Gigi Fernandez (80 weeks), Paola Suarez (87), Sara Errani (87), Roberta Vinci (110), Arantxa Sánchez-Vicario (111), Natasha Zvereva (124), Lisa Raymond (137), Cara Black (163), Liezel Huber (199) and Martina Navratilova (237) have been World No.1 for longer.

A little lower down the pecking order, Bethanie Mattek-Sands and Lucie Safarova victory in New York saw them rise to No.6 and No.16, respectively.