The 2021 Dutch Open, also known by its sponsored name Van Mossel Kia Dutch Open, was a professional

tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...

tournament played on

clay court A clay court is one of the types of tennis court on which the sport of tennis is played. Clay courts are built on a foundation of crushed stone, brick, shale, and other construction aggregate, aggregate, with a thin layer of fine clay particles ...

s. It was the second edition of the Challenger tournament which was part of the

2021 ATP Challenger Tour The ATP Challenger Tour in 2021 in tennis, 2021 was the secondary professional tennis circuit organized by the ATP. The 2021 ATP Challenger Tour calendar comprised 147 tournaments with prize money ranging from $36,680 up to $156,240. It was the 44 ...

. It took place in

Amersfoort Amersfoort () is a Cities of the Netherlands, city and List of municipalities of the Netherlands, municipality in the Provinces of the Netherlands, province of Utrecht (province), Utrecht, Netherlands. As of 31 January 2023, the municipality had ...

Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

between 12 and 18 July 2021.

Singles main draw entrants

Seeds

* ¹ Rankings are as of 28 June 2021.

Other entrants

The following players received wildcards into the singles main draw: *

Gijs Brouwer Gijs Brouwer (; born 14 March 1996) is a Dutch tennis player. Brouwer has a career high ATP singles ranking of World No. 114 achieved on 27 February 2023. He also has a career high doubles ranking of World No. 148 achieved on 22 August 2022. Br ...

* Ryan Nijboer *

Jelle Sels Jelle Sels (born 10 August 1995) is a Dutch tennis player. Sels competes mainly in the Challenger tour circuit. He has a career high ATP singles ranking of world No. 127 achieved on 28 November 2022. He also has a career high doubles ranking of ...

The following players received entry into the singles main draw as alternates: *

Thomaz Bellucci Thomaz Cocchiarali Bellucci (born 30 December 1987, in Tietê, São Paulo, Tietê) is a Brazilian former professional tennis player. He achieved a career-high singles ranking of World No. 21 in July 2010. Bellucci used a string of ATP Challeng ...

Johannes Härteis Johannes Härteis (born 22 February 1996) is a German tennis player. Härteis achieved a career high ATP singles ranking of world No. 300 in November 2020. He made his ATP main draw debut at the 2019 Hamburg European Open in the doubles compe ...

The following players received entry from the qualifying draw: *

Michael Geerts Michael Geerts (born 17 January 1995) is a Belgian tennis player. He has a career high ATP singles ranking of world No. 212 achieved on 3 April 2023. He also has a career high ATP doubles ranking of No. 162 achieved on 17 October 2022. Geerts c ...

* Alexander Maarten Jong *

Johan Nikles Johan Nikles (born 23 March 1997) is a Swiss tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles ...

* Deney Wassermann

Champions

Singles

Tallon Griekspoor Tallon Griekspoor (; born 2 July 1996) is a Dutch professional tennis player. He has a career-high Association of Tennis Professionals, ATP singles ranking of world No. 21, achieved on 6 November 2023. He also has a career-high ATP doubles ranki ...

def.

Botic van de Zandschulp Botic van de Zandschulp (; born 4 October 1995) is a Dutch professional tennis player. Van de Zandschulp has a career high ATP rankings, ranking of world No. 22 in singles by the Association of Tennis Professionals, ATP, achieved on 29 August 20 ...

6–1, 3–6, 6–1.

Doubles

Luca Castelnuovo Luca Castelnuovo (born 29 January 1997) is a Swiss tennis player. Castelnuovo has a career high ATP singles ranking of No. 456 achieved on 30 June 2025. He also has a career high doubles ranking of No. 267 achieved on 11 July 2022. Castelnuovo ...

Manuel Guinard Manuel Guinard (born 15 November 1995) is a French professional tennis player. He achieved a career-high ATP doubles ranking of world No. 36 on 14 April 2025 and a career-high singles ranking of world No. 134 on 31 October 2022. Guinard won his ...

def.

Sergio Galdós Sergio Galdós (; born January 2, 1990) is a Peruvian tennis player. He is a regular member of the Peruvian Davis Cup team. In 2016 he broke into the top 100 of the men's doubles rankings for the first time finishing the year ranked No. 80 in t ...

Gonçalo Oliveira Gonzalo Oliveira (born 17 February 1995 as Gonçalo Oliveira) is a Portuguese-born tennis player who currently represents Venezuela and plays on the ATP Challenger Tour. He has a career high ATP singles ranking of world No. 194 achieved on 25 D ...

0–6, 6–4, 1–9

References

{{DEFAULTSORT:Dutch Open, 2021

Dutch Open Dutch Open may refer to: *Dutch Open (tennis), an ATP tennis tournament from 1957 to 2008 *Dutch Open (golf), an annual golf tournament on the European Tour *Dutch Open (badminton) *Dutch Open (darts) The Dutch Open is an annual darts tournament t ...

2021 in Dutch tennis July 2021 sports events in the Netherlands Dutch Open (tennis)