| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. P Vachtfeidl vs S Sathyanandha |
| 0-1 | 55 | 2013 | London Chess Classic Open | C11 French |
| 27. J Quinn vs P Vachtfeidl |
| ½-½ | 24 | 2013 | London Chess Classic Open | D97 Grunfeld, Russian |
| 28. D H Fernandez vs P Vachtfeidl |
| ½-½ | 55 | 2014 | London Chess Classic Open | B40 Sicilian |
| 29. P Vachtfeidl vs T Wall |
| 0-1 | 30 | 2014 | London Chess Classic Open | B01 Scandinavian |
| 30. Shankar Kumar vs P Vachtfeidl |
| 0-1 | 43 | 2014 | London Chess Classic Open | B22 Sicilian, Alapin |
| 31. P Vachtfeidl vs D Guthrie |
| ½-½ | 49 | 2014 | London Chess Classic Open | C84 Ruy Lopez, Closed |
| 32. C Bates vs P Vachtfeidl |
| 1-0 | 38 | 2014 | London Chess Classic Open | A04 Reti Opening |
| 33. B Haldorsen vs P Vachtfeidl |
| 1-0 | 25 | 2014 | London Chess Classic Open | B80 Sicilian, Scheveningen |
| 34. P Vachtfeidl vs V Wettasinha |
| 1-0 | 37 | 2014 | London Chess Classic Open | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 35. P Vachtfeidl vs S Brozel |
| 0-1 | 54 | 2014 | London Chess Classic Open | B48 Sicilian, Taimanov Variation |
| 36. F Kebbedies vs P Vachtfeidl |
| ½-½ | 41 | 2014 | London Chess Classic Open | D73 Neo-Grunfeld, 5.Nf3 |
| 37. P Vachtfeidl vs S Milliet |
| 0-1 | 36 | 2015 | London Chess Classic Open | C41 Philidor Defense |
| 38. M Chen vs P Vachtfeidl |
| ½-½ | 30 | 2015 | London Chess Classic Open | A36 English |
| 39. P Vachtfeidl vs R Willmoth |
| 0-1 | 24 | 2015 | London Chess Classic Open | B07 Pirc |
| 40. D Turner vs P Vachtfeidl |
| 0-1 | 37 | 2015 | London Chess Classic Open | A07 King's Indian Attack |
| 41. P Vachtfeidl vs N Thatte |
| 1-0 | 16 | 2015 | London Chess Classic Open | C79 Ruy Lopez, Steinitz Defense Deferred |
| 42. R Williamson vs P Vachtfeidl |
| 1-0 | 37 | 2015 | London Chess Classic Open | D91 Grunfeld, 5.Bg5 |
| 43. P Vachtfeidl vs P Asenov |
| 0-1 | 40 | 2015 | London Chess Classic Open | B90 Sicilian, Najdorf |
| 44. S Giakoustidis vs P Vachtfeidl |
| ½-½ | 23 | 2015 | London Chess Classic Open | D87 Grunfeld, Exchange |
| 45. P Vachtfeidl vs P Barasi |
| 1-0 | 65 | 2015 | London Chess Classic Open | B28 Sicilian, O'Kelly Variation |
| 46. A Warakomska vs P Vachtfeidl |
| 1-0 | 23 | 2016 | London Chess Classic Open | B82 Sicilian, Scheveningen |
| 47. P Vachtfeidl vs P Barasi |
| 1-0 | 32 | 2016 | London Chess Classic Open | B28 Sicilian, O'Kelly Variation |
| 48. S Mahadevan vs P Vachtfeidl |
| 1-0 | 27 | 2016 | London Chess Classic Open | B81 Sicilian, Scheveningen, Keres Attack |
| 49. P Vachtfeidl vs M E Osborne |
| 1-0 | 47 | 2016 | London Chess Classic Open | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 50. R Cumming vs P Vachtfeidl |
| 1-0 | 35 | 2016 | London Chess Classic Open | D87 Grunfeld, Exchange |
Kibitzing
