Estoril Open
Tournament information
Founded	2015
Editions	7
Location	Cascais Portugal
Venue	Clube de Ténis do Estoril
Category	ATP Tour 250 series
Surface	Clay / outdoor
Draw	28S / 16Q / 16D
Prize money	€562,815 (2023)
Website	millenniumestorilopen.com
Current champions (2023)
Singles	Casper Ruud
Doubles	Sander Gillé Joran Vliegen

The Estoril Open (also known as the Millennium Estoril Open for sponsorship purposes) is an ATP clay court tennis tournament held in the Portuguese Riviera. The event take place at the sports complex of Clube de Ténis do Estoril in Cascais. The tournament was created in 2015 to replace the historic Portugal Open, which was canceled due to lack of sponsorships. The tournament was created by former Dutch tennis player Benno van Veggel and Portuguese football agent Jorge Mendes.^[1][2][3][4]

Results

Singles

Year	Champion	Runner-up	Score
2015	Richard Gasquet	Nick Kyrgios	6–3, 6–2
2016	Nicolás Almagro	Pablo Carreño Busta	6–7(6–8), 7–6(7–5), 6–3
2017	Pablo Carreño Busta	Gilles Müller	6–2, 7–6(7–5)
2018	João Sousa	Frances Tiafoe	6–4, 6–4
2019	Stefanos Tsitsipas	Pablo Cuevas	6–3, 7–6(7–4)
2020	Not held due to the COVID-19 pandemic.
2021	Albert Ramos Viñolas	Cameron Norrie	4–6, 6–3, 7–6(7–3)
2022	Sebastián Báez	Frances Tiafoe	6–3, 6–2
2023	Casper Ruud	Miomir Kecmanović	6–2, 7–6(7–3)

Doubles

Year	Champions	Runners-up	Score
2015	Treat Huey Scott Lipsky	Marc López David Marrero	6–1, 6–4
2016	Eric Butorac Scott Lipsky	Łukasz Kubot Marcin Matkowski	6–4, 3–6, [10–8]
2017	Ryan Harrison Michael Venus	David Marrero Tommy Robredo	7–5, 6–2
2018	Kyle Edmund Cameron Norrie	Wesley Koolhof Artem Sitak	6–4, 6–2
2019	Jérémy Chardy Fabrice Martin	Luke Bambridge Jonny O'Mara	7–5, 7–6(7–3)
2020	Not held due to the COVID-19 pandemic.
2021	Hugo Nys Tim Pütz	Luke Bambridge Dominic Inglot	7–5, 3–6, [10–3]
2022	Nuno Borges Francisco Cabral	Máximo González André Göransson	6–2, 6–3
2023	Sander Gillé Joran Vliegen	Nikola Ćaćić Miomir Kecmanović	6–3, 6–4