| 2009 GEMAX Open | |
|---|---|
| Date | February 15 – February 21 |
| Edition | 7th |
| Location | Belgrade, Serbia |
| Champions | |
| Singles | |
 Viktor Troicki | |
| Doubles | |
 Michael Kohlmann / Philipp Marx | |
The 2009 GEMAX Open was a professional tennis tournament played on carpet courts. It was part of the Tretorn SERIE+ of the 2009 ATP Challenger Tour. It took place in Belgrade, Serbia between 16 and 22 February 2009.
| Country | Player | Rank | Seed |
|---|---|---|---|
| SRB | Viktor Troicki | 46 | 1 |
| SRB | Janko Tipsarević | 49 | 2 |
 UKR | Sergiy Stakhovsky | 80 | 3 |
 BEL | Olivier Rochus | 117 | 4 |
| SRB | Ilija Bozoljac | 136 | 5 |
 SVK | Karol Beck | 137 | 6 |
 RUS | Mikhail Elgin | 142 | 7 |
| GER | Daniel Brands | 145 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Viktor Troicki def. Dominik Hrbatý, 6–4, 6–2
Michael Kohlmann / Philipp Marx def. 
Aisam-ul-Haq Qureshi / 
Lovro Zovko, 3–6, 6–2, 10–8
The 2009 UniCredit Czech Open was a tennis clay-court tournament included in the 2009 ATP Challenger Tour. Agustín Calleri was the defending singles champion, but could not get past the first round. Jan Hájek, world no. 288, came from the qualifying round and took the title in front of his home crowd by beating the top-100 player Steve Darcis in the final. Johan Brunström and Jean-Julien Rojer won the doubles event.
The 2009 Bank Austria-TennisTrophy was a tennis tournament played on indoor hard courts. It was the 35th edition of the event known that year as the Bank Austria-TennisTrophy, and was part of the ATP World Tour 250 Series of the 2009 ATP World Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from October 24 through November 1, 2009.
The 2010 Open 13 is a tennis tournament played on indoor hard courts. It was the 17th edition of the Open 13, and is part of the International Series of the 2010 ATP World Tour. It took place at the Palais des Sports in Marseille, France, from February 15 through February 21, 2010.
The 2010 Brazil Open Series was a professional tennis tournament played on outdoor red clay courts. It was part of the 2010 ATP Challenger Tour. It took place in Curitiba, Brazil between 19 and 25 April 2010.
The 2009 Zagorka Cup was a professional tennis tournament played on outdoor red clay courts. It was part of the 2009 ATP Challenger Tour. It took place in Sofia, Bulgaria between 20 and 26 April 2009.
The 2009 Košice Open was a professional tennis tournament played on outdoor red clay courts. It was part of the 2009 ATP Challenger Tour. It took place in Košice, Slovakia between 8 and 14 June 2009.
The 2009 Ethias Trophy was a professional tennis tournament played on indoor hard courts. It was the fifth edition of the tournament which was part of the Tretorn SERIE+ of the 2009 ATP Challenger Tour. It took place in Mons, Belgium between 5 and 11 October 2009.
The 2009 Open de Rennes was a professional tennis tournament played on indoor hard courts. It was the fourth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Rennes, France between 12 and 18 October 2009.
The 2009 Ritro Slovak Open was a professional tennis tournament played on indoor hard courts. It was the tenth edition of the tournament which was part of Tretorn Serie+ of the 2009 ATP Challenger Tour. It took place in Bratislava, Slovakia between 16 and 22 November 2009.
The 2010 Ritro Slovak Open was a professional tennis tournament played on hard courts. It was the eleventh edition of the tournament which was part of the Tretorn SERIE+ series of the 2010 ATP Challenger Tour and the 2010 ITF Women's Circuit. It took place in Bratislava, Slovakia between 15 and 21 November 2010.
The 2011 Internazionali Trismoka was a professional tennis tournament played on indoor hard courts. It was part of the 2011 ATP Challenger Tour. It took place in Bergamo, Italy between 7 and 13 February 2011.
The 2011 Volkswagen Challenger was a professional tennis tournament played on carpet. It was the 18th edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Wolfsburg, Germany between 21 and 27 February 2011.
The 2011 All Japan Indoor Tennis Championships was a professional tennis tournament played on carpet courts. It was the 15th edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Kyoto, Japan between 7 and 13 March 2011.
The 2011 Košice Open was a professional tennis tournament played on outdoor red clay courts. It was part of the 2011 ATP Challenger Tour. It took place in Košice, Slovakia between 6 and 12 June 2011.
The 2012 Košice Open was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Košice, Slovakia between 11 and 17 June 2012.
The 2015 Open BNP Paribas Banque de Bretagne was a professional tennis tournament played on hard courts. It was the fifth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Quimper, France between 2 and 8 March 2015.
The 2015 Poprad-Tatry ATP Challenger Tour was a professional tennis tournament played on clay courts. It was the 1st edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Poprad, Slovakia between 15 and 22 June 2015.
The 2016 UniCredit Czech Open is a professional tennis tournament played on clay courts. It is the 23rd edition of the tournament which is part of the 2016 ATP Challenger Tour. It took place in Prostějov, Czech Republic between 31 May and 4 June 2016.
The 2017 Prosperita Open was a professional tennis tournament played on clay courts. It was the 14th edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 1 and 7 May.
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.
