Guy den Ouden

Guy den Ouden (born 8 April 2002) is a Dutch professional tennis player. He has a career-high singles ranking of world No. 147 achieved on 8 September 2025 and a doubles ranking of No. 540 achieved on 2 May 2022. He is currently the No. 4 player from the Netherlands.

In 2020 and 2021, den Ouden attended Pepperdine University in California. He is the son of Arnoud and Anne Den Ouden, who were both keen tennis players. He played football at VV Maarssen before concentrating on tennis. He trained at the National Tennis Center with senior pros such as Botic van de Zandschulp, Robin Haase and Jesper de Jong and became Dutch champion at U16 and U18 level.

Career

2020-2022: Juniors, Pro Tour debuts As a junior, he reached the semifinals at the 2020 French Open – Boys' singles. He was the first Dutch person to have achieved this since Thiemo de Bakker in 2006. His run included a win over the second seed and 2020 Australian Open - Boys' singles finalist Arthur Cazaux.

In 2022, den Ouden won five ITF tournaments and his ranking climbed inside the top 500 for the first time, before being sidelined by injury. Upon his return he was chosen as a training partner for the Dutch Davis Cup team.

2023-2025: Maiden Challenger title, top 150 In June 2023, den Ouden won an ITF tournament in Aarhus, Denmark. The following month he was a finalist at a tournament in The Hague, Netherlands. In November 2023, den Ouden defeated Arthur Géa to win an ITF Futures hardcourt tournament in Heraklion.

In February 2024, he was given a wildcard into qualifying for the 2024 ABN AMRO Open in Rotterdam where he lost to alternate Pablo Llamas Ruiz. In September 2024, den Ouden won his maiden title at the 2024 Izida Cup II in Dobrich, Bulgaria, where he faced compatriot Jelle Sels, defeating him in straight sets. As a result he made his top 300 debut on 16 September 2024. den Ouden reached the top 200 at No. 187 on 19 May 2025.

Performance timeline

Singles

ATP Challenger Tour finals

Singles: 7 (3 titles, 4 runner-ups) LegendATP Challenger Tour (3–4)Finals by surfaceHard (0–0)Clay (3–4)