|Defunct tennis tournament|
|Tour||Grand Prix circuit (1972–1989)|
ATP Tour (1990–2008)
|Location||Hilversum, Netherlands (1957–1994)|
Amsterdam, Netherlands (1995–2001)
Amersfoort, Netherlands (2002–2008)
|Surface||Clay / outdoor|
The Dutch Open Tennis Amersfoort (or Dutch Open) originally known as the Netherlands International Championships and Netherland Championships was a tennis tournament played on outdoor clay court and held in three different locations in The Netherlands between 1898 and 2008. From 1957 to 1973 the tournament consisted of both men's and women's events (singles, doubles, mixed doubles) but from 1975 onward only men's singles and doubles events were held.
The inaugural edition began on 23 August 1898 in the Hague the first champion of the event was Irish player Joshua Pim awarded the title as a result of a walkover against American player William Howard until 1994 the tournament was played in multiple cities . It was part of the Grand Prix tennis circuit in the 1970s and an ATP Tour event from its inception in 1990. Amsterdam became the event host in 1995 and in 2002 the tournament moved to Amersfoort where it was held until its final edition in 2008.
Balázs Taróczy won six editions and is the record title holder.
|2021||Tallon Griekspoor||Botic van de Zandschulp||6–1, 3–6, 6–1|
|2019||Mats Moraing||Kimmer Coppejans||6–2, 3–6, 6–3|
|2021|| Luca Castelnuovo
| Sergio Galdós
|0–6, 6–4, [11–9]|
|2019|| Harri Heliövaara
| Jesper de Jong
|Hilversum||1957||Beatrice de Chambure||R. Topel||6–3, 4–6, 7–5|
|1958||Jettie Wienese||Zus Peters||6–4, 6–2|
|1959||Norma Marsh||Zus Peters||6–4, 6–1|
|1960||Bernice Vukovic-Carr||Renée Schuurman||6–0, 6–1|
|1961||Jan Lehane||Christiane Mercelis||6–4, 6–0|
|1962||Maria Bueno||Sandra Price||6–1, 4–6, 6–2|
|1963||Lesley Turner||Renée Schuurman||6–2, 6–1|
|1964||Margaret Smith||Maria Bueno||6–0, 1–6, 6–3|
|1965||Françoise Dürr||Edda Buding||9–11, 6–4, 6–4|
|1966||Annette Van Zyl||Trudy Groenman||6–3, 6–1|
|1968||Margaret Court||Judy Tegart||8–6, 6–0|
|1969||Kerry Melville||Karen Krantzcke||6–2, 3–6, 6–3|
|1970||Margaret Court||Kerry Melville||6–1, 6–1|
|1971||Evonne Goolagong||Christina Sandberg||8–6, 6–3|
|1972||Betty Stöve||Marijke Schaar||7–5, 6–3|
|1973||Betty Stöve||Helga Masthoff||7–5, 6–2|
- "NETHERLANDS CH. Tournament Roll of honour". thetennisbase.com. The Tennis Base 2017. Retrieved 4 October 2017.
- 50 jaar Dutch Open Tennis. Hilversum: Jubileum Commissie Dutch Open Tennis. 2007. pp. 118–124.
- "NETHERLANDS CH. Tournament Draw 1898". thetennisbase.com. The Tennis Base. Retrieved 4 October 2017.
- Harman, Neil (2009-05-04). "The Net Post: Novak Djokovic is glowing with pride at hosting his own tournament". The Times. London. Retrieved 2009-05-08.