| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Alekhine vs J Foltys |
  | 1-0 | 48 | 1936 | Podebrady | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 27. J Foltys vs Stahlberg |
| ½-½ | 23 | 1936 | Podebrady | D18 Queen's Gambit Declined Slav, Dutch |
| 28. Menchik vs J Foltys |
| 0-1 | 34 | 1936 | Podebrady | A04 Reti Opening |
| 29. J Foltys vs Petrov |
| ½-½ | 32 | 1936 | Podebrady | C40 King's Knight Opening |
| 30. Flohr vs J Foltys |
| ½-½ | 75 | 1936 | Podebrady | D62 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 31. J Foltys vs Eliskases |
| 1-0 | 29 | 1936 | Podebrady | B72 Sicilian, Dragon |
| 32. E Zinner vs J Foltys |
| ½-½ | 50 | 1936 | Podebrady | A13 English |
| 33. J Foltys vs K Richter |
| 0-1 | 42 | 1936 | Podebrady | B01 Scandinavian |
| 34. L Steiner vs J Foltys |
| 0-1 | 61 | 1936 | Podebrady | C11 French |
| 35. J Foltys vs G Thomas |
| 1-0 | 25 | 1936 | Podebrady | D30 Queen's Gambit Declined |
| 36. Stahlberg vs J Foltys |
| 1-0 | 27 | 1936 | non-FIDE Munich Olympiad | D63 Queen's Gambit Declined, Orthodox Defense |
| 37. O Kavlie-Jorgensen vs J Foltys |
| 0-1 | 40 | 1936 | non-FIDE Munich Olympiad | D05 Queen's Pawn Game |
| 38. J Foltys vs G Geshev |
| 1-0 | 68 | 1936 | non-FIDE Munich Olympiad | D43 Queen's Gambit Declined Semi-Slav |
| 39. J Foltys vs Keres |
| ½-½ | 60 | 1936 | non-FIDE Munich Olympiad | C50 Giuoco Piano |
| 40. J Foltys vs E Book |
| 1-0 | 21 | 1936 | non-FIDE Munich Olympiad | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 41. Maroczy vs J Foltys |
| ½-½ | 17 | 1936 | non-FIDE Munich Olympiad | C11 French |
| 42. G Alexandrescu vs J Foltys |
| 0-1 | 36 | 1936 | non-FIDE Munich Olympiad | A14 English |
| 43. J Foltys vs M Romi |
| 1-0 | 67 | 1936 | non-FIDE Munich Olympiad | C10 French |
| 44. Eliskases vs J Foltys |
| ½-½ | 18 | 1936 | non-FIDE Munich Olympiad | A90 Dutch |
| 45. J Foltys vs G van Doesburgh |
| 1-0 | 38 | 1936 | non-FIDE Munich Olympiad | D43 Queen's Gambit Declined Semi-Slav |
| 46. J Foltys vs Milner-Barry |
| 1-0 | 40 | 1937 | Margate | D51 Queen's Gambit Declined |
| 47. C H Alexander vs J Foltys |
| ½-½ | 43 | 1937 | Margate | C11 French |
| 48. J Foltys vs V Buerger |
| 1-0 | 46 | 1937 | Margate | B62 Sicilian, Richter-Rauzer |
| 49. T Tylor vs J Foltys |
| ½-½ | 26 | 1937 | Margate | B58 Sicilian |
| 50. J Foltys vs G Thomas |
| 1-0 | 25 | 1937 | Margate | D43 Queen's Gambit Declined Semi-Slav |
Kibitzing
