| 2016 Bauer Watertechnology Cup | |
|---|---|
| Date | 31 October – 6 November |
| Edition | 20th |
| Surface | Carpet |
| Location | Eckental, Germany |
| Champions | |
| Singles | |
 Steve Darcis | |
| Doubles | |
 Kevin Krawietz /  Albano Olivetti | |
The 2016 Bauer Watertechnology Cup was a professional tennis tournament played on carpet courts. It was the 20th edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Eckental, Germany between 31 October and 6 November 2016.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| GER | Florian Mayer | 55 | 1 |
 RUS | Daniil Medvedev | 106 | 2 |
| GER | |||
 SVK | Andrej Martin | 114 | 4 |
| BEL | Steve Darcis | 115 | 5 |
| SVK | Lukáš Lacko | 117 | 6 |
| RUS | Teymuraz Gabashvili | 118 | 7 |
| GER | Tobias Kamke | 124 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw with a protected ranking:
The following players received entry from the qualifying draw:
The following players entered as a lucky losers:
Kevin Krawietz 
David Pichler Steve Darcis def. 
Alex De Minaur, 6–4, 6–2. Kevin Krawietz / Albano Olivetti def. 
Roman Jebavý / Andrej Martin, 6–7(8–10), 6–4, [10–7].The 2013 Open Castilla y León was a professional tennis tournament played on hard courts. It was the 28th edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Segovia, Spain between 29 July and 4 August 2013.
The 2014 Challenger La Manche was a professional tennis tournament played on hard courts. It was the 21st edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Cherbourg, France between February 24 and March 2, 2014.
The 2016 Wrocław Open was a professional tennis tournament played on indoor hard courts. It was the second edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Wrocław, Poland between 15 and 21 February 2016.
The 2016 Open BNP Paribas Banque de Bretagne 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 Quimper, France, between 29 February and 6 March 2016.
The 2016 Kazan Kremlin Cup was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Kazan, Russia between 14 and 20 March 2016.
The 2016 Open du Pays d'Aix was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Aix-en-Provence, France between 2 and 8 May 2016.
The 2016 Guzzini Challenger was a professional tennis tournament played on hard courts. It was the fourteenth edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Recanati, Italy between 18 and 24 July 2016.
The 2016 Open Castilla y León was a professional tennis tournament played on outdoor hard courts. It was the 31st edition, for men, and 2nd edition, for women, of the tournament and part of the 2016 ATP Challenger Tour and the 2016 ITF Women's Circuit, offering totals of €64,000+H, for men, and $10,000, for women, in prize money. It took place in El Espinar, Segovia, Spain, on 25–31 July 2016.
The 2016 Trophée des Alpilles is a professional tennis tournament played on hard courts. It is the eighth edition of the tournament which is part of the 2016 ATP Challenger Tour. It was held in Saint-Rémy-de-Provence, France between 6 and 11 September 2016.
The 2016 Sparkassen ATP Challenger was a professional tennis tournament played on indoor hard courts in Ortisei, Italy between 7 and 13 November 2016. It was the seventh edition of the tournament which was part of the 2016 ATP Challenger Tour.
The 2017 Aegon Ilkley Trophy was a professional tennis tournament played on outdoor grass courts. It was the third edition of the tournament for both men and women. It was part of the 2017 ATP Challenger Tour and the 2017 ITF Women's Circuit. It took place in Ilkley, United Kingdom, on 19–25 June 2017.
The 2018 Sydney International was a joint 2018 ATP World Tour and 2018 WTA Tour tennis tournament, played on outdoor hard courts in Sydney, New South Wales (NSW). It was the 126th edition of the tournament and took place at the NSW Tennis Centre in Sydney, Australia. It was held from 7 January through 13 January 2018 as part of the Australian Open Series in preparation for the first Grand Slam of the year. Venus Williams played the event for the first time in 17 years, 20 years after her maiden appearance.
The 2018 Garden Open was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Rome, Italy between 7 and 12 May 2018.
The 2018 Bauer Watertechnology Cup was a professional tennis tournament played on carpet courts. It was the 22nd edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Eckental, Germany between 29 October and 4 November 2018.
The 2019 Hungarian Challenger Open was a professional tennis tournament played on indoor hard courts. It was the fourth edition of the tournament and was a part of the 2019 ATP Challenger Tour. It took place in Budapest, Hungary between 4 and 10 February 2019.
The 2019 New York Open was a men's tennis tournament played on indoor hard courts. It was the second edition of the New York Open, and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place in Uniondale, United States, at the Nassau Veterans Memorial Coliseum from February 11 through 17, 2019.
The 2020 JC Ferrero Challenger Open was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2020 ATP Challenger Tour. It took place in Alicante, Spain between 12 and 18 October 2020. Carlos Alcaraz was the singles winner; the pair of Enzo Couacaud and Albano Olivetti won doubles.
The 2021 Challenger La Manche was a professional tennis tournament played on hard courts. It was the 28th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Cherbourg, France between 8 and 14 February 2021.
The 2021 Stockholm Open was a professional men's tennis tournament played on indoor hard courts. It was the 52nd edition of the tournament, and part of the ATP Tour 250 series of the 2021 ATP Tour. It took place at the Kungliga tennishallen in Stockholm, Sweden from 7 to 13 November 2021.
The 2021 Open International de Tennis de Roanne was a professional tennis tournament played on indoor hard courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Roanne, France between 8 and 14 November 2021.