- Novak Djokovic (Dai-Yokozuna)
- Ashleigh Barty (Komusubi, ex-Ozeki)
New Career Sanyaku Rank:
- Matteo Berrettini, the 77th Male Sekiwake of the Open Era
- Denis Shapovalov, the 91st Male Komusubi of the Open Era
- Hubert Hukarcz, the 92st Male Komusubi of the Open Era
- Arnya Sabalenka, the 72nd Female Komusubi of the Open Era
| Player (career rank if different) | To | From |
|---|---|---|
| Promotions | ||
| Ashleigh Barty | Ozeki | Komusubi |
| Matteo Berrettini | Sekiwake | Maegashira |
| Karolina Pliskova (ex-Ozeki) | Sekiwake | Maegashira |
| Denis Shapovalov | Komusubi | Maegashira |
| Angelique Kerber (ex-Ozeki) | Komusubi | Maegashira |
| Aryna Sabalenka | Komusubi | Maegashira |
| Karolina Muchova | Komusubi | Maegashira |
| Demotions | ||
| Daniel Medvedev | Komusubi | Sekiwake |
| Dominik Thiem (ex-Ozeki) | Komusubi | Sekiwake |
| Sofia Kenin (ex-Ozeki) | Komusubi | Sekiwake |
| Iga Swiatek | Komusubi | Sekiwake |
| Barbora Krejcikova | Komusubi | Sekiwake |
| Anastasia Pavlyuchenkova | Komusubi | Sekiwake |
| Diego Schwartzman | Maegashira | Komusubi |
| Simona Halep (ex-Ozeki) | Maegashira | Komusubi |
| Jennifer Brady (ex-Sekiwake) | Maegashira | Komusubi |
| Maria Sakkari | Maegashira | Komusubi |
| Tamara Zidansek | Maegashira | Komusubi |
Kinboshi:
("gold star" - prize awarded to a non-sanyaku ranked competitor for beating an active Yokozuna):
- Aliaksandra Sasnovich - for beating Dai-Yokozuna Serena Williams in Round 1
Other noteworthy developments:
- Dai-Yokozuna (Great Grand Champion) Novak Djokovic won his 20th grand slam title, equaling Roger Federer's and Rafael Nadal's record. He is now #2 in the stats-based open area top 20 ranking, behind Federer but ahead of Nadal (the rank order is determined by the number of finals participations). For the first time since this website exists (since 2008), the top 3 male open era players are all active.
- Asleigh Barty returns to Ozeki (Champion) rank after winning her second grand slam tournament
- Ozeki Alexander Zverev and Stefanos Tsitsipas both exited early and go kadoban: they need to reach the quarterfinals at the 2021 US Open to defend rank.
