The 2019 Argentina Open was a men's tennis tournament played on outdoor clay courts. It was the 22nd edition of the ATP Buenos Aires event, and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place in Buenos Aires, Argentina, from February 11 through 17, 2019.
The 2019 Kremlin Cup was a professional tennis tournament played on indoor hard courts. It was the 30th edition of the Kremlin Cup for the men and the 24th edition for the women. The tournament was part of the ATP Tour 250 series of the 2019 ATP Tour, and of the Premier Series of the 2019 WTA Tour. It took place at the Ice Palace Krylatskoye in Moscow, Russia, from 14 October through 20 October 2019.
The 2019 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 45th edition of the event, and part of the ATP Tour 500 Series of the 2019 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 21 October until 27 October 2019.
The 2020 Qatar Open was the 28th edition of the Qatar Open, a men's tennis tournament which is played on outdoor hard courts. It was part of the ATP Tour 250 of the 2020 ATP Tour. It took place at the Khalifa International Tennis and Squash Complex in Doha, Qatar from 6 to 11 January 2020. The tournament was awarded the Tournament of the Year award in the 250 category from the 2019 ATP Awards for the third time in five years. Second-seeded Andrey Rublev won the singles title.
The 2020 European Open was a men's tennis tournament played on indoor hard courts. It was the fifth edition of the European Open and part of the ATP Tour 250 series of the 2020 ATP Tour. It took place at the Lotto Arena in Antwerp, Belgium, from October 19 to October 25.
The 2020 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 46th edition of the event, and part of the ATP Tour 500 Series of the 2020 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 26 October until 1 November 2020.
The 2020 Sofia Open was a men's tennis tournament played on indoor hard courts. It was the fifth edition of the Sofia Open as part of the ATP Tour 250 series of the 2020 ATP Tour. Originally scheduled for 28 September to 4 October at the Arena Armeec in Sofia, Bulgaria, but due to the COVID-19 pandemic it was rescheduled to 8 November until 14 November 2020. Unseeded Jannik Sinner won the singles title.
The 2021 Qatar Open was the 29th edition of the Qatar Open, a men's tennis tournament which is played on outdoor hard courts. It was part of the ATP Tour 250 of the 2021 ATP Tour. It took place at the Khalifa International Tennis and Squash Complex in Doha, Qatar from 8 to 14 March 2021. The tournament was awarded the Tournament of the Year award in the 250 category from the 2019 ATP Awards for the third time in five years.
The 2021 Belgrade Challenger was a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Belgrade, Serbia between 12 and 18 April 2021.
The 2021 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 47th edition of the event, and part of the ATP Tour 500 Series of the 2021 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 25 until 31 October 2021. Second-seeded Alexander Zverev won the singles title.
The 2022 Korea Open was a combined ATP Tour and WTA Tour tennis tournament took place at the Olympic Park Tennis Center in Seoul, South Korea on outdoor hard courts from 19 to 25 September 2022 for the women and from 26 September to 2 October 2022 for the men. It was the 18th edition of the women's tournament, and the first edition of the men's tournament since 1996. The tournament was a WTA 250 event on the 2022 WTA Tour, and a ATP Tour 250 event on the 2022 ATP Tour after several tournaments in China were cancelled because of the ongoing COVID-19 pandemic.
The 2022 Tel Aviv Open was a tennis tournament played on indoor hard court. It was the first edition of the Tel Aviv Open at the ATP Tour level since 1996, and part of the ATP Tour 250 series of the 2022 ATP Tour. It was played at Expo Tel Aviv in Tel Aviv, Israel, from 26 September to 2 October 2022.
The 2022 Gijón Open was a professional men's tennis tournament played on indoor hard courts. It was the first edition of the event, and part of the ATP World Tour 250 series of the 2022 ATP Tour. It was played at Palacio de Deportes in Gijón, Spain, from 10 to 16 October 2022.
The 2022 Tennis Napoli Cup was a professional men's tennis tournament played on outdoor hard courts. It was the 21st edition of the tournament, and part of the ATP Tour 250 series of the 2022 ATP Tour. It took place at the Tennis Club Napoli in Naples, Italy from 17 to 23 October 2022.
The 2024 Rolex Paris Masters is a professional men's tennis tournament to be played on indoor hard courts. It will be the 52nd edition of this Masters 1000 event on the 2024 ATP Tour. It will take place at the Accor Arena in Paris from 28 October to 3 November 2024.
The 2024 Hangzhou Open was a men's tennis tournament played on outdoor hard courts. It was the first edition of the Hangzhou Open and part of the ATP Tour 250 series of the 2024 ATP Tour. It took place at the Hangzhou Olympic Sports Expo Center in Hangzhou, China, from 18 September until 24 September 2024. Unseeded Marin Čilić, who entered the main draw on a wildcard, won the singles title. The tournament replaced the Zhuhai Championships on the ATP Tour calendar.
The 2024 Stockholm Open is a professional men's tennis tournament to be played on indoor hard courts. It will be the 55th edition of the tournament, and part of the ATP Tour 250 series of the 2024 ATP Tour. It will take place at the Kungliga tennishallen in Stockholm, Sweden from 14 to 20 October 2024.
The 2024 Almaty Open is a professional men's tennis tournament to be held on indoor hard courts. It will be the fifth edition of the tournament, and part of the ATP Tour 250 Series of the 2024 ATP Tour.
The 2024 Swiss Indoors Basel is a men's tennis tournament to be played on indoor hard courts. It will be the 53rd edition of the event, and part of the 500 series of the 2024 ATP Tour. It will be held at the St. Jakobshalle in Basel, Switzerland, from 21 October until 27 October 2024.
The 2024 Moselle Open is a men's tennis tournament to be played on indoor hard courts. It will be the 21st edition of the event, and part of the ATP 250 tournaments on the 2024 ATP Tour. It will take place at the Arènes de Metz from 3 November to 9 November 2024.
Novak Djokovic 
Jonathan Erlich / 
Andrei Vasilevski 
