Dimitar Kuzmanov is a Bulgarian professional tennis player. He competes mostly on the ATP Challenger Tour. His highest singles ranking is No. 159 achieved on 29 August 2022, whilst his best doubles ranking is No. 438 achieved on 1 April 2019.
The 2014 Amex-Istanbul Challenger was a professional tennis tournament played on hard courts. It was the 27th edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Istanbul, Turkey between 8 and 14 September 2014.
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 2015 Eskişehir Cup was a professional tennis tournament played on hard courts. It was the 2nd edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Eskişehir, Turkey between 18 and 24 May 2015.
The 2016 Sofia Open was a men's tennis tournament played on indoor hard courts. It was the inaugural edition of the Sofia Open as part of the ATP World Tour 250 series of the 2016 ATP World Tour. It took place at the Arena Armeec in Sofia, Bulgaria, from 1 February until 7 February 2016. First-seeded Roberto Bautista Agut won the singles title.
Alexandar Lazarov is a Bulgarian professional tennis player. His highest singles ranking is No. 272 achieved on 14 November 2022, whilst his best doubles ranking is No. 359 achieved on 3 February 2020.
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 until 1 May 2016. Unseeded Diego Schwartzman won the singles title.
The 2017 Sofia Open was a men's tennis tournament played on indoor hard courts. It was the second 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 5 February until 12 February 2017. Third-seeded Grigor Dimitrov won the singles title.
The 2017 Sibiu Open was a professional tennis tournament played on clay courts. It was the sixth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Sibiu, Romania between 18 and 24 September 2017.
The 2018 Sofia Open was a men's tennis tournament played on indoor hard courts. It was the third edition of the Sofia Open as part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at the Arena Armeec in Sofia, Bulgaria, from 5 February until 11 February 2018. Unseeded Mirza Bašić, who entered the main draw as a qualifier, won the singles title.
Adrian Andreev is a professional Bulgarian tennis player. He has a career-high ATP singles ranking of World No. 183 achieved on 18 September 2023. Andreev won the 2018 US Open Junior doubles title with Anton Matusevich. He has a career-high doubles ranking of world No. 584 achieved on 12 September 2022. He is currently the No. 3 Bulgarian player.
Alexander Donski is a Bulgarian tennis player.
The 2019 Sofia Open was a men's tennis tournament to be played on indoor hard courts. It was the fourth edition of the Sofia Open as part of the ATP Tour 250 series of the 2019 ATP Tour. It took place at the Arena Armeec in Sofia, Bulgaria, from 5 February until 11 February 2019. Third-seeded Daniil Medvedev won the singles title.
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 Antalya Open was a men's tennis tournament played on outdoor hard courts. It was the 4th edition of the event and part of the ATP Tour 250 series of the 2021 ATP Tour. The tournament took place in Antalya, Turkey, from January 7 to 13.
The 2021 Zadar Open 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 Zadar, Croatia between 22 and 28 March 2021.
The 2021 Sofia Open was a men's tennis tournament played on indoor hard courts. It was the sixth edition of the Sofia Open as part of the ATP World Tour 250 series of the 2021 ATP Tour. It was played at the Arena Armeec in Sofia, Bulgaria, from 27 September to 3 October 2021. First-seeded Jannik Sinner won the singles title.
The 2022 Sofia Open was a tennis tournament to be played on indoor hard courts. It was the 7th edition of the event and it was part of the ATP World Tour 250 series of the 2022 ATP Tour. It was played at the Arena Armeec in Sofia, Bulgaria, from 26 September to 2 October 2022.
The 2022 Trofeo Faip–Perrel was a professional tennis tournament played on hard courts. It was the seventeenth edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Bergamo, Italy between 31 October and 6 November 2022.
Adrian Mannarino defeated Jack Draper in the final, 7–6(8–6), 2–6, 6–3 to win the singles tennis title at the 2023 Sofia Open. It was his third ATP Tour singles title of the season and the fifth of his career.
Adrian Mannarino 
Gonzalo Escobar / 
Aleksandr Nedovyesov 
