| Estoril Open | |
|---|---|
 | |
| ATP Challenger Tour | |
| Founded | 2015 |
| Editions | 9 |
| Location | Cascais Portugal |
| Venue | Clube de Ténis do Estoril |
| Category | ATP Tour 250 (2015–2024, 2026–2027) ATP Challenger Tour 175 (2025) |
| Surface | Clay / outdoor |
| Draw | 28S / 16Q / 16D |
| Prize money | €227,270 (2025), €579,320 (2024, 2026-) |
| Website | millenniumestorilopen |
| Current champions (2025) | |
| Singles |  Alex Michelsen |
| Doubles | |
TheEstoril Open (also known as theMillennium Estoril Open for sponsorship purposes) is anATPclay courttennis tournament held in thePortuguese Riviera. The event takes place at the sports complex of Clube de Ténis do Estoril inCascais. The tournament was removed from the 2025 ATP calendar, and its future was left uncertain,[1] until it was announced in September 2024 that it would be returning in2025 as anATP Challenger 175 event, and anATP 250 in 2026 and 2027.[2][3][4]
Estoril Open was created by former Dutch tennis player Benno van Veggel and Portuguese football agentJorge Mendes in 2015 to replace thePortugal Open, which was canceled due to lack of sponsorships.[5][6][7][8]
| 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 theCOVID-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) |
| 2024 |  Hubert Hurkacz | Pedro Martínez | 6–3, 6–4 |
| ↓ ATP Challenger 175 ↓ | |||
| 2025 | Alex Michelsen |  Andrea Pellegrino | 6–4, 6–4 |
| ↓ ATP 250 ↓ | |||
| Year | Champions | Runners-up | Score |
|---|---|---|---|
| 2015 |  Treat HueyScott Lipsky | Marc LópezDavid Marrero | 6–1, 6–4 |
| 2016 | Eric ButoracScott Lipsky | Łukasz KubotMarcin Matkowski | 6–4, 3–6, [10–8] |
| 2017 | Ryan Harrison Michael Venus | David MarreroTommy Robredo | 7–5, 6–2 |
| 2018 | Kyle EdmundCameron Norrie |  Wesley KoolhofArtem Sitak | 6–4, 6–2 |
| 2019 | Jérémy ChardyFabrice Martin | Luke BambridgeJonny O'Mara | 7–5, 7–6(7–3) |
| 2020 | Not held due to the COVID-19 pandemic. | ||
| 2021 |  Hugo Nys Tim Pütz | Luke BambridgeDominic Inglot | 7–5, 3–6, [10–3] |
| 2022 | Nuno BorgesFrancisco Cabral | Máximo González André Göransson | 6–2, 6–3 |
| 2023 |  Sander GilléJoran Vliegen | Nikola ĆaćićMiomir Kecmanović | 6–3, 6–4 |
| 2024 |  Gonzalo Escobar Aleksandr Nedovyesov | Sadio DoumbiaFabien Reboul | 7–5, 6–2 |
| ↓ ATP Challenger 125 ↓ | |||
| 2025 | Ariel BeharJoran Vliegen | Francisco Cabral Lucas Miedler | 7–5, 6–3 |
| ↓ ATP 250 ↓ | |||
38°42′29″N9°15′9″W / 38.70806°N 9.25250°W /38.70806; -9.25250
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