| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. P Vachtfeidl vs O Biti |
| 0-1 | 26 | 2001 | Telecom Open | B08 Pirc, Classical |
| 2. P Vachtfeidl vs D Baramidze |
| 0-1 | 39 | 2004 | Liechtenstein Open | B21 Sicilian, 2.f4 and 2.d4 |
| 3. J Sucher vs P Vachtfeidl |
| 1-0 | 34 | 2004 | Liechtenstein Open | A45 Queen's Pawn Game |
| 4. A Puliti vs P Vachtfeidl |
| 0-1 | 56 | 2004 | Liechtenstein Open | B57 Sicilian |
| 5. P Vachtfeidl vs O Biti |
| 0-1 | 31 | 2005 | Czech Open-A | C41 Philidor Defense |
| 6. Z Balenovic vs P Vachtfeidl |
| 1-0 | 24 | 2005 | Czech Open-A | A05 Reti Opening |
| 7. P Vachtfeidl vs K Kalnins |
| ½-½ | 58 | 2005 | Czech Open-A | C80 Ruy Lopez, Open |
| 8. A Burtasova vs P Vachtfeidl |
| ½-½ | 48 | 2005 | Czech Open-A | B22 Sicilian, Alapin |
| 9. P Vachtfeidl vs C Parligras |
| 0-1 | 38 | 2005 | Czech Open-A | B21 Sicilian, 2.f4 and 2.d4 |
| 10. P Vachtfeidl vs S T Ansell |
| ½-½ | 35 | 2010 | London Chess Classic Open | B13 Caro-Kann, Exchange |
| 11. P Vachtfeidl vs P Stoma |
| ½-½ | 48 | 2011 | London Chess Classic Open | B13 Caro-Kann, Exchange |
| 12. C Sreeves vs P Vachtfeidl |
| ½-½ | 39 | 2011 | London Chess Classic Open | B46 Sicilian, Taimanov Variation |
| 13. N Surendran vs P Vachtfeidl |
| 1-0 | 43 | 2011 | London Chess Classic Open | A49 King's Indian, Fianchetto without c4 |
| 14. P Vachtfeidl vs D J Ledger |
| 0-1 | 27 | 2012 | London Chess Classic Open | C78 Ruy Lopez |
| 15. S Peck vs P Vachtfeidl |
| 0-1 | 67 | 2012 | London Chess Classic Open | B83 Sicilian |
| 16. P Vachtfeidl vs A Ethelontis |
| 0-1 | 58 | 2012 | London Chess Classic Open | C18 French, Winawer |
| 17. J S Burke vs P Vachtfeidl |
| ½-½ | 93 | 2012 | London Chess Classic Open | B23 Sicilian, Closed |
| 18. R Takahashi vs P Vachtfeidl |
| ½-½ | 22 | 2012 | London Chess Classic Open | A49 King's Indian, Fianchetto without c4 |
| 19. P Vachtfeidl vs T Johansson |
| 1-0 | 35 | 2012 | London Chess Classic Open | B76 Sicilian, Dragon, Yugoslav Attack |
| 20. B Eriksson vs P Vachtfeidl |
 | 1-0 | 36 | 2012 | London Chess Classic Open | B80 Sicilian, Scheveningen |
| 21. A Summerscale vs P Vachtfeidl |
| 1-0 | 34 | 2013 | London Chess Classic Open | A45 Queen's Pawn Game |
| 22. P Vachtfeidl vs M Torgersen |
| 1-0 | 17 | 2013 | London Chess Classic Open | B92 Sicilian, Najdorf, Opocensky Variation |
| 23. P Roberts vs P Vachtfeidl |
| ½-½ | 25 | 2013 | London Chess Classic Open | B83 Sicilian |
| 24. P Vachtfeidl vs J Jetzl |
| 0-1 | 17 | 2013 | London Chess Classic Open | C11 French |
| 25. M Josse vs P Vachtfeidl |
| ½-½ | 37 | 2013 | London Chess Classic Open | A37 English, Symmetrical |
Kibitzing
