Attila Balázs is a Hungarian professional tennis player. As a qualifier, he reached the semifinals of the 2012 BRD Năstase Țiriac Trophy in Bucharest and was defeated by Fabio Fognini, as well as he reached the final of the 2019 Croatia Open Umag where he lost against Dusan Lajovic. He is a seven time Hungarian National Tennis Champion; after Béla von Kehrling, József Asbóth and István Gulyás, he is the 4th Hungarian player who was able to win at least 6 consecutive national championships.
The 2011 ATP Studena Croatia Open was a men's tennis tournament played on outdoor clay courts. It was the 22nd edition of the ATP Studena Croatia Open, and was part of the ATP World Tour 250 Series of the 2011 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 26 July through 31 July 2011.
The 2013 ATP Vegeta Croatia Open Umag was a men's tennis tournament played on outdoor clay courts. It was the 24th edition of the ATP Vegeta Croatia Open Umag, and was part of the ATP World Tour 250 Series of the 2013 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 18 July until 28 July 2013. Fifth-seeded Tommy Robredo won the singles title.
The 2014 ATP Vegeta Croatia Open Umag was a men's tennis tournament played on outdoor clay courts. It was the 25th edition of the Croatia Open, and was part of the ATP World Tour 250 Series of the 2014 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 21 July through 27 July 2014. Unseeded Pablo Cuevas, who entered the main draw as a qualifier, won the singles title.
The 2016 Rio Open was a professional tennis tournament played on outdoor clay courts. It was the 3rd edition of the tournament, and part of the 2016 ATP World Tour and the 2016 WTA Tour. It took in Rio de Janeiro, Brazil between 15 February and 21 February 2016.
The 2016 Croatia Open Umag was a men's tennis tournament played on outdoor clay courts. It was the 27th edition of the Croatia Open, and part of the ATP World Tour 250 Series of the 2016 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 18 July through 24 July 2016.
The 2017 Gazprom Hungarian Open was a men's tennis tournament played on outdoor clay courts. It was the 1st edition of the Hungarian Open as part of the ATP World Tour 250 series of the 2017 ATP World Tour. It took place at Nemzeti Edzés Központ in Budapest, Hungary, from April 24–30. The tournament replaced the Romanian Open on the ATP World Tour calendar.
The 2017 Croatia Open Umag was a men's tennis tournament played on outdoor clay courts. It was the 28th edition of the Croatia Open, and part of the ATP World Tour 250 Series of the 2017 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 17 July through 23 July 2017.
The 2018 Gazprom Hungarian Open was a men's tennis tournament played on outdoor clay courts. It was the 2nd edition of the Hungarian Open, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at Nemzeti Edzés Központ in Budapest, Hungary, from April 23–29.
The 2018 Prosperita Open was a professional tennis tournament played on clay courts. It was the 15th edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 30 April and 6 May.
The 2018 Croatia Open Umag was a men's tennis tournament played on outdoor clay courts. It was the 29th edition of the Croatia Open, and part of the ATP World Tour 250 Series of the 2018 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 15 July through 22 July 2018.
The 2018 Chengdu Open was a men's tennis tournament played on outdoor hard courts. It was the 3rd edition of the Chengdu Open and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at the Sichuan International Tennis Center in Chengdu, China, from September 24 to 30.
The 2019 Rio Open was a professional men's tennis tournament played on outdoor clay courts. It was the sixth edition of the Rio Open, and formed part of the ATP Tour 500 series of the 2019 ATP Tour. It took place in Rio de Janeiro, Brazil between February 18th to 24th, 2019.
The 2019 Western & Southern Open was a men's and women's tennis tournament played on outdoor hard courts from August 12–18, 2019. It was a Masters 1000 tournament on the 2019 ATP Tour and a WTA Premier 5 tournament on the 2019 WTA Tour. The tournament was one of two headline events in the 2019 US Open Series. The 2019 tournament was the 118th men's edition and the 91st women's edition of the Cincinnati Masters and took place at the Lindner Family Tennis Center in Mason, a northern suburb of Cincinnati, in the United States.
The 2020 Rio Open presented by Claro was a professional men's tennis tournament played on outdoor clay courts. It was the seventh edition of the Rio Open, and part of the ATP Tour 500 series on the 2020 ATP Tour. It took place in Rio de Janeiro, Brazil between 17 and 23 February 2020.
The 2020 Split Open was a professional tennis tournament played on clay courts. It was part of the 2020 ATP Challenger Tour. It took place in Split, Croatia between 28 September and 4 October 2020.
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 2021 Split Open was a professional tennis tournament played on clay courts. It was part of the 2021 ATP Challenger Tour. It took place in Split, Croatia between 5 and 11 April 2021.
The 2021 Split Open II was a professional tennis tournament played on clay courts. It was part of the 2021 ATP Challenger Tour. It took place in Split, Croatia between 12 and 18 April 2021.
The 2021 Croatia Open is a men's tennis tournament played on outdoor clay courts. It is the 31st edition of the Croatia Open, and part of the 250 Series of the 2021 ATP Tour. It take place at the International Tennis Center in Umag, Croatia, from 19 through 25 July 2021.
Dušan Lajović 
Robin Haase / 
Philipp Oswald 
