| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. R P Michell vs J A Seitz |
| 1-0 | 34 |
1922 |
Major Open | C12 French, McCutcheon |
| 2. J A Seitz vs Colle |
| 1-0 | 51 |
1923 |
Hastings 2324 | B41 Sicilian, Kan |
| 3. J A Seitz vs R P Michell |
| 1-0 | 54 |
1923 |
Hastings 2324 | D64 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 4. J A Seitz vs J Blake |
| 1-0 | 70 |
1923 |
Hastings 2324 | A16 English |
| 5. Euwe vs J A Seitz |
| 1-0 | 34 |
1923 |
Hastings2324 ;HCL 24 | D52 Queen's Gambit Declined |
| 6. Maroczy vs J A Seitz |
| 1-0 | 54 |
1923 |
Hastings 2324 | C02 French, Advance |
| 7. Yates vs J A Seitz |
| 1-0 | 49 |
1923 |
Hastings 2324 | B41 Sicilian, Kan |
| 8. J A Seitz vs H E Price |
| 1-0 | 31 |
1923 |
Hastings 2324 | A10 English |
| 9. J A Seitz vs L Steiner |
| 1-0 | 63 |
1924 |
Hastings-A 2425 | C66 Ruy Lopez |
| 10. J A Seitz vs H E Price |
| 1-0 | 36 |
1924 |
Hastings-A 2425 | D64 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 11. Maroczy vs J A Seitz |
| 1-0 | 37 |
1924 |
Gyor | C15 French, Winawer |
| 12. V Vukovic vs J A Seitz |
| 1-0 | 49 |
1924 |
Gyor | D06 Queen's Gambit Declined |
| 13. Przepiorka vs J A Seitz |
 | 1-0 | 26 |
1924 |
Hastings playoff 2425 | D06 Queen's Gambit Declined |
| 14. Yates vs J A Seitz |
| 1-0 | 48 |
1924 |
Hastings-A 2425 | B43 Sicilian, Kan, 5.Nc3 |
| 15. Prokes vs J A Seitz |
| 1-0 | 66 |
1925 |
Debrecen | C01 French, Exchange |
| 16. H K Mattison vs J A Seitz |
| 1-0 | 56 |
1925 |
Debrecen | B41 Sicilian, Kan |
| 17. J A Seitz vs A Vajda |
| 1-0 | 55 |
1925 |
Debrecen | E61 King's Indian |
| 18. P F Johner vs J A Seitz |
| 1-0 | 68 |
1925 |
Debrecen | D02 Queen's Pawn Game |
| 19. Alekhine vs J A Seitz |
| 1-0 | 20 |
1925 |
Hastings 2526 | A52 Budapest Gambit |
| 20. J A Seitz vs L Steiner |
| 1-0 | 30 |
1925 |
Debrecen | D90 Grunfeld |
| 21. J A Seitz vs Yates |
| 1-0 | 42 |
1925 |
Hastings 2526 | E90 King's Indian |
| 22. J A Seitz vs G Nagy |
| 1-0 | 48 |
1925 |
Debrecen | D43 Queen's Gambit Declined Semi-Slav |
| 23. Vidmar vs J A Seitz |
| 1-0 | 38 |
1926 |
Hastings 2526 | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 24. J A Seitz vs Wahltuch |
| 1-0 | 51 |
1926 |
Hastings 2526 | D31 Queen's Gambit Declined |
| 25. Alekhine vs J A Seitz |
| 1-0 | 20 |
1926 |
Hastings | A52 Budapest Gambit |
