The 2011 Ningbo Challenger was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2011 ATP Challenger Tour and the second edition for the 2011 ITF Women's Circuit. It took place in Ningbo, China between 12 and 18 September 2011.
The 2011 ATP Challenger Trophy was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Trnava, Slovakia between 19 and 25 September 2011.
The 2013 Nottingham Challenge was a professional tennis tournament played on outdoor grass courts. It was the third edition of the tournament which was part of the 2013 ATP Challenger Tour and the 2013 ITF Women's Circuit. It took place in Nottingham, United Kingdom, on 10–16 June 2013.
The 2013 São Paulo Challenger de Tênis was a professional tennis tournament played on outdoor clay courts. It was the first edition of the tournament which was part of the 2013 ATP Challenger Tour and the 2013 ITF Women's Circuit, offering $50,000 in prize money for the men's event and $10,000 for the women's event. It took place in São Paulo, Brazil, on 29 July – 4 August 2013.
The 2013 AON Open Challenger was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Genoa, Italy between 2 and 8 September 2013.
The 2013 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the twelfth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 7 to 15 September 2013.
The 2013 ATP Roller Open was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Pétange, Luxembourg between 9 and 15 September 2013.
The 2013 Morocco Tennis Tour – Meknes was a professional tennis tournament played on clay courts. It was the sixth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Meknes, Morocco between 9 and 15 September 2013.
The 2013 Fergana Challenger was a professional tennis tournament played on hard courts. It was the 14th edition of the tournament for men which was part of the 2013 ATP Challenger Tour, offering $50,000 in prize money, and the third edition of the event for women on the 2013 ITF Women's Circuit, offering $25,000 in prize money. It took place in Fergana, Uzbekistan, on 23–29 September 2013.
The 2013 Sacramento Challenger was a professional tennis tournament played on hard courts. It was the ninth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Sacramento, United States between 30 September and 6 October 2013.
The 2013 Tiburon Challenger was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Tiburon, United States between 7 and 13 October 2013.
The 2013 Aberto Rio Preto was a professional tennis tournament played on clay courts. It was the second edition of the tournament which is part of the 2013 ATP Challenger Tour. It took place in São José do Rio Preto, Brazil between 7 and 13 October 2013.
The 2013 Melbourne Challenger was a professional tennis tournament played on outdoor hard court. It was the first edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Melbourne, Australia between 21 and 27 October 2013.
The 2013 Dunlop World Challenge was a professional tennis tournament played on indoor carpet courts. It was the sixth edition of the tournament which was part of the 2013 ITF Women's Circuit and the 2013 ATP Challenger Tour. It took place in Toyota, Aichi, Japan, on 18–24 November 2013.
The 2016 Shanghai Challenger was a professional tennis tournament played on hard courts. It was the sixth edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Shanghai, China between 5 and 12 September 2016.
The 2019 Jinan International Open was a professional tennis tournament played on outdoor hard courts. It was the third (men) and second (women) editions of the tournament which was part of the 2019 ATP Challenger Tour and the 2019 ITF Women's World Tennis Tour. It took place in Jinan, China between 26 August and 8 September 2019.
The 2019 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the eighteenth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 9 to 15 September 2019.
The 2019 Columbus Challenger III was a professional tennis tournament played on hard courts. It was the eighth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Columbus, United States between 16 and 22 September 2019.
The 2021 Columbus Challenger was a professional challenger level tennis tournament played on indoor hard courts. It was the tenth edition of the men's tournament which was part of the 2021 ATP Challenger Tour and the first edition of the women's event, that was part of 2021 WTA 125K series. It took place in Columbus, United States between 20 and 26 September 2021.
The 2021 Lima Challenger was a professional tennis tournament played on clay courts. It was the fifteenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Lima, Peru between 27 September and 3 October 2021.
Julian Reister 
Marin Draganja / 
