| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. I Porat vs P Prohaszka |
| ½-½ | 42 |
2005 |
FSGM November | E05 Catalan, Open, Classical line |
| 2. Caruana vs P Prohaszka |
| ½-½ | 37 |
2005 |
FSIM May | B17 Caro-Kann, Steinitz Variation |
| 3. P Prohaszka vs I Radziewicz |
| 1-0 | 89 |
2005 |
FSGM October | B20 Sicilian |
| 4. I Turova vs P Prohaszka |
| 1-0 | 49 |
2005 |
FSGM November | A18 English, Mikenas-Carls |
| 5. P Prohaszka vs K Szabo |
| 0-1 | 35 |
2005 |
FSGM November | B20 Sicilian |
| 6. P Prohaszka vs T Reiss |
| ½-½ | 70 |
2005 |
FSGM September | B36 Sicilian, Accelerated Fianchetto |
| 7. P Prohaszka vs Paschall |
| ½-½ | 4 |
2005 |
FSGM October | B00 Uncommon King's Pawn Opening |
| 8. P Prohaszka vs W Wittmann |
| 1-0 | 24 |
2005 |
FSGM November | E70 King's Indian |
| 9. P Prohaszka vs A Murariu |
| 0-1 | 62 |
2005 |
FSGM November | C63 Ruy Lopez, Schliemann Defense |
| 10. P Prohaszka vs D Berczes |
| ½-½ | 19 |
2005 |
FSGM November | A34 English, Symmetrical |
| 11. P Prohaszka vs Ngoc Truongson Nguyen |
| 0-1 | 38 |
2005 |
21st Budapest Spring Festival | B20 Sicilian |
| 12. P Prohaszka vs V Buli |
| ½-½ | 20 |
2005 |
FSGM October | A15 English |
| 13. M Turov vs P Prohaszka |
| 1-0 | 41 |
2005 |
FSGM November | B12 Caro-Kann Defense |
| 14. G Pap vs P Prohaszka |
| ½-½ | 49 |
2005 |
FSGM November | E40 Nimzo-Indian, 4.e3 |
| 15. D Berczes vs P Prohaszka |
| 1-0 | 37 |
2005 |
FSGM October | E16 Queen's Indian |
| 16. I Rajlich vs P Prohaszka |
| 0-1 | 67 |
2005 |
FSGM November | B12 Caro-Kann Defense |
| 17. P Prohaszka vs V Erdos |
 | 0-1 | 62 |
2005 |
FSGM November | C02 French, Advance |
| 18. Le Quang Liem vs P Prohaszka |
| 0-1 | 27 |
2005 |
FSGM October | E11 Bogo-Indian Defense |
| 19. P Prohaszka vs Ilincic |
| 0-1 | 60 |
2005 |
FSGM November | C01 French, Exchange |
| 20. P Prohaszka vs A Sendur |
| ½-½ | 50 |
2006 |
FSGM March | C42 Petrov Defense |
| 21. P Prohaszka vs D Antic |
| 1-0 | 30 |
2006 |
FSGM February | B06 Robatsch |
| 22. A Sendur vs P Prohaszka |
| 0-1 | 72 |
2006 |
FSGM March | B12 Caro-Kann Defense |
| 23. P Prohaszka vs A Muzychuk |
| 0-1 | 36 |
2006 |
FSGM February | B30 Sicilian |
| 24. P Prohaszka vs L Rojas |
| ½-½ | 47 |
2006 |
FSGM March | C02 French, Advance |
| 25. P Prohaszka vs Paschall |
| 1-0 | 52 |
2006 |
FSGM February | E70 King's Indian |