's-Hertogenbosch 2004
Netherlands - 14 June 2004 - 20 June 2004 - Grass
 Guillermo Coria | def. |  Michael Kohlmann | 6-4, 6-2 |
 Arnaud Clément | def. | Dennis Van Scheppingen | 7-5, 1-0, abandon |
 Mario Ancic | def. |  Igor Andreev | 6-3, 6-1 |
| Martin Verkerk | def. | Mikhail Youzhny | 6-2, 2-0 abandon |
 Fernando Verdasco | def. | John Van Lottum | 5-4, abandon |
| Tommy Robredo | def. | Guillermo Cañas | 7-5, 1-6, 7-5 |
| Michaël Llodra | def. |  Daniel Vacek | 6-3, 6-4 |
| Raemon Sluiter | def. | Philipp Petzschner | 6-3, 6-0 |
| Guillermo Coria | def. |  Karol Beck | 6-3, 6-3 |
| Michael Kohlmann | def. |  George Bastl | 7-6 (7), 6-4 |
| Dennis Van Scheppingen | def. | José Acasuso | 6-3, 6-2 |
| Arnaud Clément | def. | Ivo Karlovic | 7-6, 6-7, 6-3 |
| Mario Ancic | def. | Sjeng Schalken | 4-6, 6-3, 6-2 |
| Igor Andreev | def. | Peter Wessels | 6-1, 6-3 |
| Martin Verkerk | def. |  Kristof Vliegen | 7-6 (2), 6-4 |
| Mikhail Youzhny | def. | Anthony Dupuis | 6-4, 6-0 |
| Fernando Verdasco | def. | Jean-Claude Scherrer | 3-6, 7-6 (7), 6-4 |
| John Van Lottum | def. | Thierry Ascione | 6-2, 6-0 |
| Guillermo Cañas | def. | Nikolay Davydenko | 6-4, 6-4 |
| Tommy Robredo | def. | Lars Burgsmuller | 3-6, 6-4, 6-4 |
| Daniel Vacek | def. | Dominik Hrbaty | 6-4, 6-4 |
| Michaël Llodra | def. |  Yen-Hsun Lu | 6-3, 6-1 |
| Philipp Petzschner | def. | Alexander Popp | 6-1, 5-7, 6-4 |
| Raemon Sluiter | def. | Rainer Schüttler | 3-6, 7-6, 6-3 |
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