The 2015 Open Sud de France was a tennis tournament played on indoor hard courts. It was the 28th edition of the Open Sud de France, and part of the ATP World Tour 250 Series of the 2015 ATP World Tour. It took place at the Arena Montpellier in Montpellier, France, from February 2 to February 8, 2015.
The 2015 Shanghai Rolex Masters was a tennis tournament played on outdoor hard courts. It was the seventh edition of the Shanghai ATP Masters 1000, classified as an ATP World Tour Masters 1000 event on the 2015 ATP World Tour. It took place at Qizhong Forest Sports City Arena in Shanghai, China from October 11 to October 18, 2015.
The 2015 Kremlin Cup was a tennis tournament played on indoor hard courts. It was the 26th edition of the Kremlin Cup for the men and the 20th edition for the women. The tournament was part of the ATP World Tour 250 Series of the 2015 ATP World Tour, and of the Premier Series of the 2015 WTA Tour. It was held at the Olympic Stadium in Moscow, Russia, from 19 October through 25 October 2015.
The 2016 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was the second edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 25 April – 1 May 2016.
The 2017 Memphis Open was a tennis tournament, played on indoor hard courts. It was the 42nd edition of the Memphis Open, and part of the ATP World Tour 250 series of the 2017 ATP World Tour. It took place at the Racquet Club of Memphis in Memphis, United States, from 13 through 19 February 2017.
The 2016 WHB Hungarian Open was a professional tennis tournament played on hardcourt. It was the inaugural edition of the tournament and was part of the 2016 ATP Challenger Tour. It took place in Budapest, Hungary between 24 and 30 October 2016.
The 2017 Sofia Open was a tennis tournament played on indoor hard courts. It was the 2nd edition of the Sofia Open as part of the ATP World Tour 250 series of the 2017 ATP World Tour. It took place at the Arena Armeec in Sofia, Bulgaria, from February 5–12.
The 2017 Delray Beach Open was a professional tennis tournament played on hard courts. It was the 25th edition of the tournament, and part of the 2017 ATP World Tour. It took place in Delray Beach, United States between 20 February and 26 February 2017.
The 2017 BNP Paribas Open was a professional tennis tournament played at Indian Wells, California in March 2017. It was the 44th edition of the men's event and 29th of the women's event, and was classified as an ATP World Tour Masters 1000 event on the 2017 ATP World Tour and a Premier Mandatory event on the 2017 WTA Tour. Both the men's and the women's events took place at the Indian Wells Tennis Garden in Indian Wells, California, from March 6 through March 19, 2017, on outdoor hard courts.
The 2017 Miami Open presented by Itaú was a professional men and women's tennis tournament played on outdoor hard courts. It was the 32nd edition of the Miami Open, and part of the Masters 1000 category on the 2017 ATP World Tour, and of the Premier Mandatory category on the 2017 WTA Tour. All men and women's events took place at the Tennis Center at Crandon Park in Key Biscayne, Florida, United States, from March 20 through April 2, 2017.
The 2017 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was the third edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 1–7 May 2017.
The 2017 Antalya Open was a men's tennis tournament played on grass courts. It was the 1st edition of the Antalya Open, and part of the ATP World Tour 250 series of the 2017 ATP World Tour. It took place at the Kaya Palazzo Resort in Belek, Antalya Province, Turkey, from June 25–July 1.
The 2017 European Open was a men's tennis tournament played on indoor hard courts. It was the second edition of the European Open and part of the ATP World Tour 250 series of the 2017 ATP World Tour. It was taking place at the Lotto Arena in Antwerp, Belgium, from October 16 to October 22.
The 2018 Mexican Open was a professional tennis tournament played on outdoor hard courts. It was the 25th edition of the men's tournament, and part of the 2018 ATP World Tour and the 2018 WTA Tour. It took place in Acapulco, Mexico between 26 February and 3 March 2018, at the Princess Mundo Imperial.
The 2018 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was the fourth edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 30 April–6 May 2018.
The 2018 Gerry Weber Open was a tennis tournament played on outdoor grass courts. It was the 26th edition of the event and part of the ATP World Tour 500 series of the 2018 ATP World Tour. It took place at the Gerry Weber Stadion in Halle, Germany, between 18 and 24 June 2018.
The 2018 German Open was a men's tennis tournament played on outdoor red clay courts. It was the 112th edition of the German Open Tennis Championships and part of the ATP World Tour 500 series of the 2018 ATP World Tour. It took place at the Am Rothenbaum in Hamburg, Germany, from July 23 through 29, 2018.
The 2019 Antalya Open was a men's tennis tournament played on grass courts. It was the 3rd edition of the event, and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place at the Kaya Palazzo Resort in Belek, Antalya Province, Turkey, from June 23–29.
The 2019 Moselle Open was a tennis tournament played on indoor hard courts. It was the 17th edition of the Moselle Open, and part of the ATP Tour 250 Series of the 2019 ATP Tour. It took place at the Arènes de Metz from September 16 through September 22, 2019.
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.
Roger Federer 
Radu Albot / 
Dušan Lajović 
