Hamburgo
Sitio Oficial
- Nombre: International German Open
- Lugar: Hamburgo, Alemania
- Categoría: ATP 500
- Fecha: 20/7 - 26/7
- Superficie: Polvo de ladrillo
- Cuadros: S48 D16
- Premios: $1.115.000
| Año | Campeón | Resultado | Finalista | |
| 2010 |  Andrey Golubev | 6-3 7-5 |  [3] Jurgen Melzer |
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| 2009 |  [2] Nikolay Davydenko | 6-4 6-2 |  [13] Paul Henri Mathieu |
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| 2008 |  [2] Rafael Nadal | 7-5 6-7 6-3 |  [1] Roger Federer |
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| 2007 | [1] Roger Federer | 2-6 6-2 6-0 | [2] Rafael Nadal |
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| 2006 | [8] Tommy Robredo | 6-1 6-3 6-3 |  [15] Radek Stepanek |
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| 2005 | [1] Roger Federer | 6-3 7-5 7-6 | [Q] Richard Gasquet |
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| 2004 | [1] Roger Federer | 4-6 6-4 6-2 6-3 |  [2] Guillermo Coria |
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| 2003 | [10] Guillermo Coria | 6-3 6-4 6-4 | Agustín Calleri |
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| 2002 | [11] Roger Federer | 6-1 6-3 6-4 | [6] Marat Safin |
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| 2001 | [Q] Albert Portas | 4-6 6-2 0-6 7-6 7-5 | [8] Juan Carlos Ferrero |
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| 2000 |  [5] Gustavo Kuerten | 6-4 5-7 6-4 5-7 7-6 | [12] Marat Safin |
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| 1999 |  [4] Marcelo Ríos | 6-7 7-5 5-7 7-6 6-2 | Mariano Zabaleta |
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| 1998 | Albert Costa | 6-2 6-0 1-0 AB | [4] Alex Corretja |
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| 1997 |  Andrei Medvedev | 6-0 6-4 6-2 | [10] Félix Mantilla |
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| 1996 | [Q] Roberto Carretero | 2-6 6-4 6-4 6-4 | Alex Corretja |
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| 1995 | [12] Andrei Medvedev | 6-3 6-2 6-1 |  [4] Goran Ivanisevic |
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| 1994 | [4] Andrei Medvedev | 6-4 6-4 3-6 6-3 | Yevgeny Kafelnikov |
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| 1993 |  [6] Michael Stich | 6-3 6-7 7-6 6-4 | Andrei Chesnokov |
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| 1992 |  [1] Stefan Edberg | 5-7 6-4 6-1 | [3] Michael Stich |
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| 1991 | [13] Karel Novacek | 6-3 6-3 5-7 0-6 6-1 | Magnus Gustaffson |
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| 1990 | Juan Aguilera | 6-1 6-0 7-6 | [1] Boris Becker |
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| 1989 |  [1] Ivan Lendl | 6-4 6-1 6-3 | [14] Horst Skoff |
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| 1988 | [2] Kent Carlsson | 6-2 6-1 6-4 | [5] Henri Leconte |
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| 1987 | [1] Ivan Lendl | 6-1 6-3 6-3 |  [2] Miloslav Mecir | |
| 1986 | [4] Henri Leconte | 6-2 5-7 6-4 6-2 | [3] Miloslav Mecir |
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| 1985 | [9] Miloslav Mecir | 6-4 6-1 6-4 | [5] Henrik Sundstrom |
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| 1984 | Juan Aguilera | 6-4 2-6 2-6 6-4 6-4 | [10] Henrik Sundstrom |
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| 1983 | [6] Yannick Noah | 3-6 7-5 6-2 6-0 | [4] José Higueras |
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| 1982 | [16] José Higueras | 4-6 6-7 7-6 6-3 7-6 |  [3] Peter McNamara |
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| 1981 | [6] Peter McNamara | 7-6 6-1 4-6 6-4 | [1] Jimmy Connors |
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| 1980 | [2] Harold Solomon | 6-7 6-2 6-4 2-6 6-3 | [1] Guillermo Vilas |
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| 1979 | [6] José Higueras | 3-6 6-1 6-4 6-1 | [2] Harold Solomon |
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| 1978 | [1] Guillermo Vilas | 6-2 6-4 6-2 |  [5] Wojtek Fibak |
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| 1977 |  Paolo Bertolucci | 6-3 4-6 6-2 6-3 | [2] Manuel Orantes |
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| 1976 | Eddie Dibbs | 6-4 4-6 6-1 2-6 6-1 | Manuel Orantes |
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| 1975 | Manuel Orantes | 3-6 6-2 6-2 4-6 6-1 | Jan Kodes |
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| 1974 | [3] Eddie Dibbs | 6-2 6-2 6-3 | Hans Plotz |
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| 1973 | Eddie Dibbs | 6-1 3-6 7-6 6-3 | Karl Meiler |
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| 1972 | Manuel Orantes | 6-3 9-8 6-0 | Adriano Panatta |
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| 1971 | Andrés Gimeno | 6-3 6-2 6-2 |  Peter Szoke |
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| 1970 |  [1] Tom Okker | 4-6 6-3 6-3 6-4 |  [3] Ilie Nastase |
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| 1969 | Tony Roche | 6-1 5-7 8-6 7-5 | Tom Okker |
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| 1968 | John Newcombe | 6-3 6-2 6-4 |  Cliff Drysdale |