
| Player 1 | v | Player 2 |
| Alexander Bublik | v | BYE |
| Federico Cina | v | Quentin Halys |
| Alexandre Muller | v | Alexander Shevchenko |
| Dominic Stricker | v | Jaume Munar |
| Arthur Rinderknech | v | BYE |
| Clement Tabur | v | Jurij Rodionov |
| Jerome Kym | v | Daniel Dietrich |
| Stefanos Tsitsipas | v | Irina-Camelia Buse |
| Raphael Collignon | v | Timofey Skatov |
| Lorenzo Sonego | v | Joel Schwarzler |
| Pedro Martinez | v | Yannick Hanfmann |
| BYE | v | Valentin Vacherot |
| Juan Manuel Cerundolo | v | Zdenek Kolar |
| Kilian Feldbausch | v | Miomir Kecmanovic |
| Jaime Faria | v | Stan Wawrinka |
| BYE | v | Casper Ruud |
| Round | Points | Prize Money |
| Winner | 250 | €93,175 |
| Finals | 165 | €54,360 |
| SF | 100 | €31,955 |
| Quarter Finals | 50 | €18,515 |
| Round 16 | 25 | €10,750 |
| R28 | 0 | €6,570 |
| Qualifier | 13 | €0 |
| Qualifier 3 | 0 | €0 |
| Qualifier 2 | 7 | €3,290 |
| Qualifier 1 | 0 | €1,795 |
| Year | Champions | Runners-up | Score |
| Gstaad International | |||
| 1931 | Hector Fisher | Charles Aeschlimann | 6–1, 6–1, 6–1 |
| 1933 | Hector Fisher | Boris Maneff | 6–1, 6–3, 6–1 |
| 1935 | Max Ellmer | M Bertman | 6–1, 6–3, 6–4 |
| 1936 | Wernher Steiner | Guy Troncin | ? |
| Swiss International Championships | |||
| 1937 | Guy Troncin | Boris Maneff | 6–4, 6–4, 6–4 |
| Gstaad International | |||
| 1938 | Boris Maneff | André Jacquemet | 6–0, 3–6, 6–2, 6–3 |
| 1939 | Boris Maneff | Mario Szavoszt | 6–3, 7–5 |
| 1940 | Hans Pfaff | Hector Cosmo Fisher | 6–3, 2–6, 6–4 |
| 1941 | Jost Spitzer | Georges Grange | 6-3 6-3 6-2 |
| Swiss International Championships | |||
| 1942 | Hans Pfaff | Jost Spitzer | 6–2, 6–4, 6–3 |
| Gstaad International | |||
| 1943 | Jost Spitzer | René Buser | 5–7, 8–6, 1–6, 6–3, 6–4 |
| 1944 | Boris Maneff | Jost Spitzer | 6–0, 6–2, 6–2 |
| 1945 | Boris Maneff | Aleco Noghes | 6–3, 6–4, 7–5 |
| 1946 | Vladimír Černík | Bohuslav Hykš | 6–0, 0–6, 1–6, 6–4, 6–2 |
| 1947 | Marcello Del Bello | Mario Belardinelli | walkover |
| 1948 | Semifinals and final not played | ||
| 1949 | Earl Cochell | Jaroslav Drobný | 3–6, 6–3, 2–6, 6–3, 7–5 |
| 1950 | Vladimír Černík | Sumant Misra | 6–1, 2–6, 6–8, 6–4, 6–3 |
| 1951 | Russell Seymour | Syd Levy | 2–6, 6–3, 7–5, 1–6, 6-4 |
| Swiss International Championships | |||
| 1952 | Herbert Flam | Irvin Dorfman | 6–4, 6–2, 6–1 |
| 1953 | Semifinals and final not played | ||
| 1954 | Lew Hoad | Neale Fraser | 6–4, 11–9, 6–4 |
| 1955 | Arthur Larsen | Enrique Morea | 6–4, 2–6, 6–2, 6–2 |
| Gstaad International | |||
| 1956 | Jaroslav Drobný | Neale Fraser | 7–5, 6–3, 6–3 |
| Swiss International Championships | |||
| 1957 | Budge Patty | Jaroslav Drobný | 3–6, 6–3, 6–3, 6–1 |
| 1958 | Ashley Cooper | Neale Fraser | 2–6, 3–6, 7–5, 6–4, 6–3 |
| Gstaad International | |||
| 1959 | Luis Ayala | Jan-Erik Lundqvist | 6–1, 6–2, 6–1 |
| Swiss International Championships | |||
| 1960 | Roy Emerson | Mike Davies | 6–4, 9–7, 6–2 |
| 1961 | Roy Emerson | Luis Ayala | 6–3, 6–1, 6–0 |
| Gstaad International | |||
| 1962 | Rod Laver | Neale Fraser | 6–4, 6–4, 8–6 |
| Swiss International Championships | |||
| 1963 | Nicola Pietrangeli | Roy Emerson | 7–5, 6–2, 6–2 |
| Gstaad International | |||
| 1964 | Thomaz Koch | Ronald Barnes | 6–3, 6–1, 7–9, 7–5 |
| 1965 | Patricio Rodríguez | Thomaz Koch | 2–6, 6–3, 6–2, 6–2 |
| Swiss International Championships | |||
| 1966 | Roy Emerson | Manuel Santana | 5–7, 7–5, 6–3 |
| 1967 | Roy Emerson | Manuel Santana | 6–2, 8–6, 6–4 |
| ↓ Open era ↓ | |||
| Swiss Open Championships | |||
| 1968 | Cliff Drysdale | Tom Okker | 6–3, 6–3, 6–0 |
| 1969 | Roy Emerson | Tom Okker | 6–1, 12–14, 6–4, 6–4 |
| 1970 | Tony Roche | Tom Okker | 7–5, 7–5, 6–3 |
| ↓ Grand Prix circuit ↓ | |||
| 1971 | John Newcombe | Tom Okker | 6–2, 5–7, 1–6, 7–5, 6–3 |
| 1972 | Andrés Gimeno | Adriano Panatta | 7–5, 9–8, 6–4 |
| 1973 | Ilie Năstase | Roy Emerson | 6–4, 6–3, 6–3 |
| 1974 | Guillermo Vilas | Manuel Orantes | 6–1, 6–2 |
| 1975 | Ken Rosewall | Karl Meiler | 6–4, 6–4, 6–3 |
| 1976 | Raúl Ramírez | Adriano Panatta | 7–5, 6–7, 6–1, 6–3 |
| 1977 | Jeff Borowiak | Jean-François Caujolle | 2–6, 6–1, 6–3 |
| 1978 | Guillermo Vilas | José Luis Clerc | 6–3, 7–6, 6–4 |
| 1979 | Ulrich Pinner | Peter McNamara | 6–2, 6–4, 7–5 |
| 1980 | Heinz Günthardt | Kim Warwick | 4–6, 6–4, 7–6 |
| 1981 | Wojciech Fibak | Yannick Noah | 6–1, 7–6 |
| 1982 | José Luis Clerc | Guillermo Vilas | 6–1, 6–3, 6–2 |
| 1983 | Sandy Mayer | Tomáš Šmíd | 6–0, 6–3, 6–2 |
| 1984 | Joakim Nyström | Brian Teacher | 6–4, 6–2 |
| 1985 | Joakim Nyström | Andreas Maurer | 6–4, 1–6, 7–5, 6–3 |
| 1986 | Stefan Edberg | Roland Stadler | 7–5, 4–6, 6–1, 4–6, 6–2 |
| 1987 | Emilio Sánchez | Ronald Agénor | 6–2, 6–3, 7–6 |
| 1988 | Darren Cahill | Jakob Hlasek | 6–3, 6–4, 7–6 |
| 1989 | Carl-Uwe Steeb | Magnus Gustafsson | 6–7, 3–6, 6–2, 6–4, 6–2 |
| ↓ ATP Tour 250[a] ↓ | |||
| 1990 | Martín Jaite | Sergi Bruguera | 6–3, 6–7, 6–2, 6–2 |
| 1991 | Emilio Sánchez | Sergi Bruguera | 6–1, 6–4, 6–4 |
| 1992 | Sergi Bruguera | Francisco Clavet | 6–1, 6–4 |
| 1993 | Sergi Bruguera | Karel Nováček | 6–3, 6–4 |
| 1994 | Sergi Bruguera | Guy Forget | 3–6, 7–5, 6–2, 6–1 |
| 1995 | Yevgeny Kafelnikov | Jakob Hlasek | 6–3, 6–4, 3–6, 6–3 |
| 1996 | Albert Costa | Félix Mantilla | 4–6, 7–6(7–2), 6–1, 6–0 |
| 1997 | Félix Mantilla | Joan Albert Viloca | 6–1, 6–4, 6–4 |
| 1998 | Àlex Corretja | Boris Becker | 7–6(7–5), 7–5, 6–3 |
| 1999 | Albert Costa | Nicolás Lapentti | 7–6(7–4), 6–3, 6–4 |
| 2000 | Àlex Corretja | Mariano Puerta | 6–1, 6–3 |
| 2001 | Jiří Novák | Juan Carlos Ferrero | 6–1, 6–7(5–7), 7–5 |
| 2002 | Àlex Corretja | Gastón Gaudio | 6–3, 7–6(7–3), 7–6(7–3) |
| 2003 | Jiří Novák | Roger Federer | 5–7, 6–3, 6–3, 1–6, 6–3 |
| 2004 | Roger Federer | Igor Andreev | 6–2, 6–3, 5–7, 6–3 |
| 2005 | Gastón Gaudio | Stan Wawrinka | 6–4, 6–4 |
| 2006 | Richard Gasquet | Feliciano López | 7–6(7–4), 6–7(3–7), 6–3, 6–3 |
| 2007 | Paul-Henri Mathieu | Andreas Seppi | 6–7(1–7), 6–3, 7–5 |
| 2008 | Victor Hănescu | Igor Andreev | 6–3, 6–4 |
| 2009 | Thomaz Bellucci | Andreas Beck | 6–4, 7–6(7–2) |
| 2010 | Nicolás Almagro | Richard Gasquet | 7–5, 6–1 |
| 2011 | Marcel Granollers | Fernando Verdasco | 6–4, 3–6, 6–3 |
| 2012 | Thomaz Bellucci | Janko Tipsarević | 6–7(6–8), 6–4, 6–2 |
| 2013 | Mikhail Youzhny | Robin Haase | 6–3, 6–4 |
| 2014 | Pablo Andújar | Juan Mónaco | 6–3, 7–5 |
| 2015 | Dominic Thiem | David Goffin | 7–5, 6–2 |
| 2016 | Feliciano López | Robin Haase | 6–4, 7–5 |
| 2017 | Fabio Fognini | Yannick Hanfmann | 6–4, 7–5 |
| 2018 | Matteo Berrettini | Roberto Bautista Agut | 7–6(11–9), 6–4 |
| 2019 | Albert Ramos Viñolas | Cedrik-Marcel Stebe | 6–3, 6–2 |
| 2020 | Not held due to COVID-19 pandemic | ||
| 2021 | Casper Ruud | Hugo Gaston | 6–3, 6–2 |
| 2022 | Casper Ruud | Matteo Berrettini | 4–6, 7–6(7–4), 6–2 |
| 2023 | Pedro Cachin | Albert Ramos Viñolas | 3–6, 6–0, 7–5 |
| 2024 | Matteo Berrettini | Quentin Halys | 6–3, 6–1 |
| 2025 | Alexander Bublik | Juan Manuel Cerúndolo | 6–4, 4–6, 6–3 |
| Player | Ranking |
| 1. Alexander Bublik (KAZ) | 11 |
| 2. Casper Ruud (NOR) | 14 |
| 3. Valentin Vacherot (MON) | 20 |
| 4. Arthur Rinderknech (FRA) | 24 |
| 5. Ignacio Buse (PER) | 35 |
| 6. Jaume Munar (ESP) | 43 |
| 7. Juan Manuel Cerundolo (ARG) | 45 |
| 8. Miomir Kecmanovic (SRB) | 50 |
| 9. Raphael Collignon (BEL) | 51 |
| 10. Yannick Hanfmann (GER) | 59 |
| 11. Lorenzo Sonego (ITA) | 65 |
| 12. Stefanos Tsitsipas (GRE) | 80 |
| 13. Joel Schwaerzler (AUT) | 174 |
| 14. Jaime Faria (POR) | 93 |
| 15. Quentin Halys (FRA) | 94 |
| 16. Aleksandr Shevchenko (KAZ) | 96 |
| 17. Stan Wawrinka (SUI) | 111 |
| 18. Alexandre Muller (FRA) | 125 |
| 19. Pedro Martinez (ESP) | 136 |
| 20. Jurij Rodionov (AUT) | 152 |
| 21. Zdenek Kolar (CZE) | 156 |
| 22. WC | – |
| 23. WC | – |
| 24. WC | – |
| 25. Q | – |
| 26. Q | – |
| 27. Q | – |
| 28. Q | – |









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