The 2018 US Open: Promotions, Demotions, and Other Stats

2018 US Open Champions:

• Novak Djokovic (Dai-Yokozuna)

• Naomi Osaka (Maegashira)

New Career Sanyaku Rank:

• John Isner, the 75th Male Sekiwake of the Open Era

• Naomi Osaka, the 46th Female Sekiwake of the Open Era

• Anastasija Sevastova, the 65th Female Komusubi of the Open Era

Sanyaku Rank Changes

Player (career rank if different)	To	From
Promotions
Juan Martin del Potro	Ozeki	Sekiwake
Dominic Thiem	Sekiwake	Komusubi
John Isner	Sekiwake	Komusubi
Kei Nishikori	Sekiwake	Maegashira
Naomi Osaka	Sekiwake	Maegashira
Anastasija Sevastova	Komusubi	Maegashira
Demotions
Simona Halep	Sekiwake	Ozeki
Garbine Muguruza	Sekiwake	Ozeki
Kevin Anderson	Komusubi	Sekiwake
Jelena Ostapenko (ex-Ozeki)	Komusubi	Sekiwake
Daria Kasatkina	Maegashira	Komusubi
Julia Görges	Maegashira	Komusubi


Kinboshi:
("gold star" - prize awarded to a non-sanyaku ranked competitor for beating an active Yokozuna):

• John Milman - for beating Dai-Yokozuna Roger Federer in round 4

Other noteworthy developments:

• Venus Wiliams loses active Yokozuna status, after not reaching a semifinal/two quarterfinals in the last four slams. She joins Maria Sharapova and Andy Murray as inactive Yokozuna.
• Juan Martin del Potro returns to Ozeki rank after almost 9 years, the consequence of three strong consecutive grand slam tournaments culminating in his final participation at the US Open.
• Ozeki Marin Cilic, Sloane Stephens and Madison Keys all escape demotion with quarter-/semifinal participations. By contrast, Garbine Muguruza, and Simona Halep exit early for the second consecutive Grand Slam and get demoted to Sekiwake. They need a semifinal participation at the 2019 Australian Open to return to Ozeki rank. Angelique Kerber goes kadoban (needs a quarterfinal at the Australian Open to defend Ozeki rank).
• Karolina Pliskova held rank with a quarterfinal participation, but fell one win short of restoring her erstwhile Ozeki rank