| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. F Decoster vs E de Haan |
| ½-½ | 63 | 2004 | Belgian Team Championship 2004/05 | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 2. A van Weersel vs F Decoster |
| ½-½ | 43 | 2004 | Belgian Team Championship 2004/05 | B20 Sicilian |
| 3. F Decoster vs A Dardha |
| 0-1 | 44 | 2004 | Belgian Team Championship 2004/05 | B33 Sicilian |
| 4. F Decoster vs K Petzold |
| 1-0 | 31 | 2004 | Belgian Team Championship 2004/05 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 5. F Decoster vs W Cnossen |
| ½-½ | 20 | 2005 | Belgian Team Championship 2004/05 | C74 Ruy Lopez, Modern Steinitz Defense |
| 6. W Muhren vs F Decoster |
| 1-0 | 36 | 2005 | Belgian Team Championship 2004/05 | A07 King's Indian Attack |
| 7. F Decoster vs B De Bruycker |
| 1-0 | 36 | 2005 | Belgian Team Championship 2004/05 | B06 Robatsch |
| 8. F Decoster vs C Cacco |
| ½-½ | 28 | 2005 | Belgian Team Championship 2004/05 | B06 Robatsch |
| 9. H Groffen vs F Decoster |
| ½-½ | 26 | 2005 | Belgian Team Championship 2004/05 | A45 Queen's Pawn Game |
| 10. F Decoster vs S Hautot |
| ½-½ | 29 | 2005 | Belgian Team Championship 2004/05 | B07 Pirc |
| 11. F Decoster vs R Tiggelman |
| 1-0 | 25 | 2005 | Belgian Team Championship 2005/06 | B18 Caro-Kann, Classical |
| 12. R Schuermans vs F Decoster |
| 0-1 | 39 | 2005 | Belgian Team Championship 2005/06 | B77 Sicilian, Dragon, Yugoslav Attack |
| 13. F Decoster vs M Boeykens |
| ½-½ | 24 | 2005 | Belgian Team Championship 2005/06 | B77 Sicilian, Dragon, Yugoslav Attack |
| 14. F Decoster vs S Siebrecht |
| 0-1 | 25 | 2005 | Belgian Team Championship 2005/06 | B43 Sicilian, Kan, 5.Nc3 |
| 15. M de Wit vs F Decoster |
| 1-0 | 27 | 2006 | Belgian Team Championship 2005/06 | B22 Sicilian, Alapin |
| 16. F Decoster vs K Terrieux |
| ½-½ | 41 | 2006 | Belgian Team Championship 2005/06 | B33 Sicilian |
| 17. P Fontaine vs F Decoster |
| ½-½ | 26 | 2006 | Belgian Team Championship 2005/06 | B53 Sicilian |
| 18. O Hole vs F Decoster |
| ½-½ | 27 | 2006 | Cappelle Open | E91 King's Indian |
| 19. J Horvath vs F Decoster |
| 1-0 | 42 | 2006 | Belgian Team Championship 2005/06 | E63 King's Indian, Fianchetto, Panno Variation |
| 20. F Decoster vs M Dambacher |
| 0-1 | 46 | 2006 | Belgian Team Championship 2005/06 | B43 Sicilian, Kan, 5.Nc3 |
| 21. F Decoster vs D Komarov |
| 0-1 | 20 | 2006 | BEL-chT 0607 | C11 French |
| 22. F Decoster vs B Michiels |
| ½-½ | 25 | 2007 | Belgian League | C12 French, McCutcheon |
| 23. T Henrichs vs F Decoster |
| 1-0 | 51 | 2007 | BEL-chT 0607 | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 24. F Decoster vs C Nanu |
| 1-0 | 35 | 2009 | IM | B09 Pirc, Austrian Attack |
| 25. F Decoster vs H Renette |
| ½-½ | 44 | 2011 | TCh-BEL -12 | C93 Ruy Lopez, Closed, Smyslov Defense |
Kibitzing
