SMARTposition Diemen Open 2012
| 1/4 Finale | 1/2 Finale | Finale | |||
| 1. | Martin de Gelder | 7 | M de Gelder H Stam | R Disseldorp P Ruijg |
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| Henk Stam(1) | 7 | ||||
| R Disseldorp P Ruijg |
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| 2. | |||||
| 3. | Cees Loef | 7 | R Disseldorp P Ruijg |
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| Menno van Vliet | 8 | 7-5 6-1 | |||
| 4. | René Disseldorp | 7 | |||
| Paul Ruijg | 7 | 6-1 6-1 | |||
| 5. | Jan Hendriks | 8 | J Hendriks P Ridder |
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| Peter Ridder | 8 | 6-4 7-6 | |||
| J Bosveld N Droog |
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| 6. | R Berghegen B ten Bosch |
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| 7. | Jan Bosveld | 7 | J Bosveld N Droog |
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| Nico Droog | 7 | 6-1 6-2 | |||
| 8. | |||||
| 9. | Ton van den Hengel | 8 | F ten Broeke C Spekreijse | ||
| John Tool | 7 | 4-6 6-3 6-1 | |||
| 10. | Freek ten Broeke | 7 | F ten Broeke C Spekreijse |
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| Christian Spekreijse | 8 | 6-4 6-3 | R Berghegen B ten Bosch |
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| M Blom P van Venrooij |
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| 11. | 6-3 6-4 | ||||
| 12. | Matthijs Blom | 7 | |||
| Poul van Venrooij | 7 | ||||
| 13. | Roderik Berghegen | 8 | R Berghegen B ten Bosch |
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| Bastiaan ten Bosch | 7 | 6-4 6-4 | |||
| 14. | Marten Hoekstra | 8 | R Berghegen B ten Bosch |
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| Kees Verhoeven | 8 | 6-4,6-4 | |||
| K van der Pols T Steenkamp |
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| 15. | 6-2 6-3 | ||||
| 16. | Koen van der Pols | 8 | |||
| Tom Steenkamp(2) | 7 | ||||
