| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J A Seitz vs J Blake |
| 0-1 | 38 |
1922 |
Major Open | E00 Queen's Pawn Game |
| 2. Mieses vs J A Seitz |
| 0-1 | 48 |
1923 |
Hastings 2324 | B23 Sicilian, Closed |
| 3. J A Seitz vs G Norman |
 | 0-1 | 28 |
1923 |
Hastings 2324 | A16 English |
| 4. J A Seitz vs Alekhine |
| 0-1 | 45 |
1923 |
Portsmouth-Southsea (03) | D51 Queen's Gambit Declined |
| 5. L Dewing vs J A Seitz |
| 0-1 | 34 |
1924 |
Hastings-A 2425 | B41 Sicilian, Kan |
| 6. J A Seitz vs G Nagy |
| 0-1 | 37 |
1924 |
Gyor | B13 Caro-Kann, Exchange |
| 7. J A Seitz vs Przepiorka |
| 0-1 | 53 |
1924 |
Gyor | A22 English |
| 8. J A Seitz vs R P Michell |
| 0-1 | 47 |
1925 |
Hastings 2526 | D31 Queen's Gambit Declined |
| 9. J A Seitz vs Przepiorka |
| 0-1 | 67 |
1925 |
Debrecen | C68 Ruy Lopez, Exchange |
| 10. J A Seitz vs Reti |
| 0-1 | 56 |
1928 |
Dortmund GER | C68 Ruy Lopez, Exchange |
| 11. A Kramer vs J A Seitz |
| 0-1 | 28 |
1928 |
Dortmund GER | B73 Sicilian, Dragon, Classical |
| 12. Menchik vs J A Seitz |
| 0-1 | 51 |
1929 |
Paris | D30 Queen's Gambit Declined |
| 13. K Helling vs J A Seitz |
| 0-1 | 33 |
1929 |
DSB-26.Kongress | A82 Dutch, Staunton Gambit |
| 14. J A Seitz vs Colle |
| 0-1 | 49 |
1929 |
Paris | B25 Sicilian, Closed |
| 15. Znosko-Borovsky vs J A Seitz |
| 0-1 | 96 |
1931 |
Nice it | B24 Sicilian, Closed |
| 16. J A Seitz vs G Weissgerber |
| 0-1 | 43 |
1933 |
Bad Pyrmont | C29 Vienna Gambit |
| 17. J A Seitz vs Reshevsky |
| 0-1 | 32 |
1934 |
Syracuse | D02 Queen's Pawn Game |
| 18. J A Seitz vs H Steiner |
| 0-1 | 52 |
1938 |
Lodz | D02 Queen's Pawn Game |
| 19. J A Seitz vs P Frydman |
| 0-1 | 32 |
1938 |
Lodz | B24 Sicilian, Closed |
| 20. J A Seitz vs T Regedzinski |
| 0-1 | 77 |
1938 |
Lodz | A47 Queen's Indian |
| 21. J A Seitz vs Eliskases |
| 0-1 | 63 |
1938 |
Lodz | B24 Sicilian, Closed |
| 22. J A Seitz vs Najdorf |
| 0-1 | 31 |
1938 |
Lodz | C68 Ruy Lopez, Exchange |
| 23. Menchik vs J A Seitz |
| 0-1 | 40 |
1938 |
Lodz | D37 Queen's Gambit Declined |
| 24. J A Seitz vs J Kolski |
| 0-1 | 45 |
1938 |
Lodz | B88 Sicilian, Fischer-Sozin Attack |
| 25. J A Seitz vs E Gerstenfeld |
| 0-1 | 68 |
1938 |
Lodz | B24 Sicilian, Closed |
