Tennis - ATP Estoril Open
This event, which was called the Portugal Open until the change of name in 2015, is held in Oeiras, west of Lisbon, Portugal on the clay courts of Estoril Court Central. It was not staged in 2020 due to the Covid-19 pandemic and was downgraded to Challenger status in 2025 before returning to the main ATP Tour in 2026.
| YEAR | WINNER | RUNNER-UP |
| 1990 | EMILIO SANCHEZ (Esp) | F Davin (Arg) |
| 1991 | SERGI BRUGUERA (Esp) | K Novacek (Cze) |
| 1992 | CARLOS COSTA (Esp) | S Bruguera (Esp) |
| 1993 | ANDRIY MEDVEDEV (Ukr) | K Novacek (Cze) |
| 1994 | CARLOS COSTA (Esp) | A Medvedev (Ukr) |
| 1995 | THOMAS MUSTER (Aut) | A Costa (Esp) |
| 1996 | THOMAS MUSTER (Aut) | A Gaudenzi (Ita) |
| 1997 | ALEX CORRETJA (Esp) | F Clavet (Esp) |
| 1998 | A BERASATEGUI (Esp) | T Muster (Aut) |
| 1999 | ALBERT COSTA (Esp) | T Martin (USA) |
| 2000 | CARLOS MOYA (Esp) | F Clavet (Esp) |
| 2001 | JUAN C FERRERO (Esp) | F Mantilla (Esp) |
| 2002 | D'VID NALBANDIAN (Arg) | J Nieminen (Fin) |
| 2003 | N'LAY DAVYDENKO (Rus) | A Calleri (Arg) |
| 2004 | JUAN I CHELA (Arg) | M Safin (Rus) |
| 2005 | GASTON GAUDIO (Arg) | T Robredo (Esp) |
| 2006 | D'VID NALBANDIAN (Arg) | N Davydenko (Rus) |
| 2007 | NOVAK DJOKOVIC (Ser) | R Gasquet (Fra) |
| 2008 | ROGER FEDERER (Swi) | N Davydenko (Rus) |
| 2009 | A'BERT MONTANES (Esp) | J Blake (Usa) |
| 2010 | A'BERT MONTANES (Esp) | F Gil (Prt) |
| 2011 | JM DEL POTRO (Arg) | F Verdasco (Esp) |
| 2012 | JM DEL POTRO (Arg) | R Gasquet (Fra) |
| 2013 | STAN WAWRINKA (Swi) | D Ferrer (Esp) |
| 2014 | CARLOS BERLOCQ (Arg) | T Berdych (Cze) |
| 2015 | RICHARD GASQUET (Fra) | N Kyrgios (Aus) |
| 2016 | NICOLAS ALMAGRO (Esp) | P C'no-Busta (Esp) |
| 2017 | PABLO C'NO-BUSTA (Esp) | G Muller (Lux) |
| 2018 | JOAO SOUSA (Prt) | F Tiafoe (USA) |
| 2019 | ST'NOS TSITSIPAS (Grc) | P Cuevas (Ury) |
| 2020 | Not held | |
| 2021 | ALBERT RAMOS-V (Esp) | C Norrie (Gbr) |
| 2022 | SEBASTIAN BAEZ (Arg) | F Tiafoe (USA) |
| 2023 | CASPER RUUD (Nor) | M Kecmanovic (Ser) |
| 2024 | HUBERT HURKACZ (Pol) | P Martinez (Esp) |
| 2025 | ALEX MICHELSEN (USA) | A Pellegrino (Ita) |
| 2026 | LUCA VAN ASSCHE (Fra) | A Blockx (Bel) |
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