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| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. D Polajzer vs H Grooten |
| 0-1 | 30 | 1981 | Caorle Open | B22 Sicilian, Alapin |
| 2. W Hohlfeld vs H Grooten |
| 0-1 | 22 | 1983 | Regency Masters | B22 Sicilian, Alapin |
| 3. G Lane vs H Grooten |
| 1-0 | 32 | 1983 | Regency Masters | B22 Sicilian, Alapin |
| 4. E Schmittdiel vs H Grooten |
| 1-0 | 26 | 1993 | Hoogovens Open | B22 Sicilian, Alapin |
| 5. Saitek Brute Force vs H Grooten |
| 0-1 | 49 | 1993 | The Hague AEGON | B22 Sicilian, Alapin |
| 6. H van Arkel-de Greef vs H Grooten |
| 0-1 | 41 | 1993 | Leeuwarden Open | B22 Sicilian, Alapin |
| 7. C Mulder vs H Grooten |
| 0-1 | 26 | 1995 | Leeuwarden Open | B22 Sicilian, Alapin |
| 8. T Van Houtte vs H Grooten |
| 0-1 | 87 | 1997 | Lost Boys Open | B22 Sicilian, Alapin |
| 9. T Held vs H Grooten |
| 0-1 | 40 | 2001 | 1st Chess Week | B22 Sicilian, Alapin |
| 10. G Dickson vs H Grooten |
| ½-½ | 43 | 2006 | Hastings 2006/07 | B22 Sicilian, Alapin |
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Kibitzing
