The VTB Kremlin Cup is a professional tennis tournament held in Moscow, with the 2021 event scheduled for October 16–24. Supported by Russia’s Ministry of Sport and the Moscow Department of Sport, the tournament brings together men’s and women’s singles and doubles competitions, featuring international players. Its website serves as an information hub for fans, offering tournament news, player profiles, draws, results, match schedules, photographs and videos, and press-centre updates.

Visitors can also find ticket information, partner details, contact information, and coverage of the tournament’s Amateur Series. News and galleries document matches, player milestones, interviews, press conferences, award ceremonies, and activities around the event. The 2021 edition included notable competitors such as Anett Kontaveit, Aslan Karatsev, Marin Čilić, and Elena Ostapenko, with Kontaveit and Karatsev winning the women’s and men’s singles titles.

The program also featured doubles events and additional experiences, including a virtual tournament world and an exhibition tracing the history of tennis rackets. The site notes that stadium access was managed using QR codes