The 2013 Mersin Cup was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Mersin, Turkey between 8 and 14 April 2013.
The 2013 Eskişehir Cup was a professional tennis tournament played on hard courts. It was the 1st edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Eskişehir, Turkey between 15 and 21 July 2013.
The 2015 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was part of the 2015 ATP World Tour. It was the first 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 27 April through 3 May 2015.
The 2015 Mersin Cup was a professional tennis tournament played on clay courts. It was the 4th edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Mersin, Turkey between April 13 and 19.
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 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 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 2018 Chennai Open Challenger was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Chennai, India between 12 and 17 February 2018.
The 2018 Antalya Open was a men's tennis tournament played on grass courts. It was the 2nd edition of the event, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at the Kaya Palazzo Resort in Belek, Antalya Province, Turkey, from June 24–30.
The 2019 Qatar Open was a men's tennis tournament played on outdoor hard courts. It was the 27th edition of the Qatar Open, and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place at the Khalifa International Tennis and Squash Complex in Doha, Qatar, from 31 December to 5 January.
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.
The 2021 Amex-Istanbul Challenger was a professional tennis tournament played on hard courts. It was the 34th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Istanbul, Turkey between 18 and 24 January 2021.
The 2021 Antalya Challenger was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Antalya, Turkey between 25 and 31 January 2021.
The 2021 Antalya Challenger II was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Antalya, Turkey between 1 and 7 February 2021.
The 2021 Open de Tenis Ciudad de Pozoblanco was a professional tennis tournament played on hard courts. It was the 15th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Pozoblanco, Spain between 19 and 25 July 2021.
The 2021 Trofeo Faip–Perrel was a professional tennis tournament played on hard courts. It was the sixteenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Bergamo, Italy between 1 and 7 November 2021.
The 2021 Antalya Challenger III was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Antalya, Turkey between 29 November and 5 December 2021.
The 2021 Antalya Challenger IV was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Antalya, Turkey between 6 and 12 December 2021.
Lorenzo Sonego 
Jonathan Erlich / 
Artem Sitak 
