The Netherlands Davis Cup team represents the Netherlands in Davis Cup tennis competition and are governed by the Royal Dutch Lawn Tennis Association.
The 2014 Sport 1 Open was a professional tennis tournament played on clay courts. It was the 22nd edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Scheveningen, Netherlands between 7 and 13 July 2014.
This was the first edition of the tournament.
Matwé Middelkoop and Boy Westerhof are the defending champions, but chose not to participate this year.
Antal van der Duim and Boy Westerhof were the defending champions but chose not to defend their title.
Tobias Kamke and Philipp Marx were the defending champions, but chose not to defend their title. Unseeded pair Andrea Arnaboldi and Antonio Šančić won the title defeating Wesley Koolhof and Matwé Middelkoop in the final 6–4, 2–6, [14–12].
This was the first edition of the tournament.
Marcus Daniell and Marcelo Demoliner were the defending champions, but played with different partners. Daniell partnered Dennis Novikov while Demoliner played with Aisam-ul-Haq Qureshi. Daniell lost in the first round to Johan Brunström and Andreas Siljeström. Demoliner also failed to defend his title, losing in the final to Wesley Koolhof and Matwé Middelkoop 7–6(7–5), 0–6, [10–8].
Nicolás Almagro and Carlos Berlocq were the defending champions, but Almagro chose not to participate this year and Berlocq chose to compete in Umag instead.
The 2016 The Hague Open was a professional tennis tournament played on clay courts. It was the 24th edition of the tournament and was part of the 2016 ATP Challenger Tour. It took place in Scheveningen, Netherlands between 25 and 31 July 2016.
Wesley Koolhof and Matwé Middelkoop were the defending champions but lost in the quarterfinals to Sander Arends and Adam Majchrowicz.
Wesley Koolhof and Matwé Middelkoop were the defending champions but chose not to defend their title.
Wesley Koolhof and Matwé Middelkoop were the defending champions but chose not to defend their title.
Marco Chiudinelli and Frank Moser were the defending champions but chose not to defend their title.
Nicolas Mahut and Vasek Pospisil were the defending champions, but Pospisil chose not to participate this year. Mahut played alongside Pierre-Hugues Herbert, but lost in the semifinals to Ivan Dodig and Marcel Granollers.
Oliver Marach and Philipp Oswald were the defending champions but chose not to defend their title.
Wesley Koolhof and Matwé Middelkoop were the defending champions but chose not to defend their title.
Wesley Koolhof and Matwé Middelkoop were the defending champions, but Koolhof chose to compete in Los Cabos instead. Middelkoop played alongside Julian Knowle, but lost in the semifinals to Hans Podlipnik-Castillo and Andrei Vasilevski.
Nikola Mektić and Mate Pavić defeated Rajeev Ram and Joe Salisbury in the final, 6–4, 7–6(7–4), to win the men's doubles tennis title at the 2021 Italian Open. The second seeds did not drop a set en route to their third ATP Tour Masters 1000 victory together and their sixth title overall of the season. The all-Croatian pair also became the second doubles team to have reached the finals of the first four Masters 1000 tournaments in a season after the Bryan brothers, who last accomplished the feat in 2018. Ram and Salisbury were competing for their first title of the season and their fourth title together.
Austin Krajicek and Franko Škugor were the defending champions, but Krajicek chose to compete at the Summer Olympics and Škugor chose not to defend his title.
Wesley Koolhof 
