| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. T Petenyi vs H Vardanian |
| 0-1 | 53 |
2008 |
EU-ch U16 18th | B42 Sicilian, Kan |
| 2. I Janiashvili vs T Petenyi |
| ½-½ | 36 |
2008 |
EU-ch U16 18th | C77 Ruy Lopez |
| 3. A Mammadov vs T Petenyi |
| 1-0 | 54 |
2008 |
EU-ch U16 18th | C55 Two Knights Defense |
| 4. T Petenyi vs B Arvola |
| 1-0 | 92 |
2008 |
EU-ch U16 18th | C92 Ruy Lopez, Closed |
| 5. T Petenyi vs S Arslanov |
| 1-0 | 26 |
2008 |
EU-ch U16 18th | C05 French, Tarrasch |
| 6. P Kowalczyk vs T Petenyi |
| 1-0 | 28 |
2008 |
EU-ch U16 18th | D00 Queen's Pawn Game |
| 7. J Holvason vs T Petenyi |
| ½-½ | 60 |
2008 |
EU-ch U16 18th | C45 Scotch Game |
| 8. W So vs T Petenyi |
 | 1-0 | 50 |
2008 |
World Youth U-16 Chess Olympiad | C91 Ruy Lopez, Closed |
| 9. T Petenyi vs H Tamazyan |
| 1-0 | 70 |
2008 |
EU-ch U16 18th | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 10. P Pusec vs T Petenyi |
| 0-1 | 32 |
2009 |
SR 2.liga A 0809 | C45 Scotch Game |
| 11. T Petenyi vs G Dilanyan |
| 0-1 | 57 |
2010 |
WYCC Open U18 | C42 Petrov Defense |
| 12. V Bunda vs T Petenyi |
| ½-½ | 16 |
2010 |
TCh-SVK Extraliga -11 | C45 Scotch Game |
| 13. T Petenyi vs H Sharma |
| ½-½ | 35 |
2011 |
World Junior Championships | B30 Sicilian |
| 14. T Petenyi vs V A V Rajesh |
| ½-½ | 79 |
2011 |
World Junior Championships | B30 Sicilian |
| 15. T Petenyi vs I Akash Pc |
| 0-1 | 51 |
2011 |
World Junior Championships | C97 Ruy Lopez, Closed, Chigorin |
| 16. T Petenyi vs J Helbich Jr |
| ½-½ | 36 |
2011 |
SVK extraliga 11/12 | B90 Sicilian, Najdorf |
| 17. L Krysa vs T Petenyi |
| 1-0 | 52 |
2011 |
World Junior Championships | E37 Nimzo-Indian, Classical |
| 18. K Piorun vs T Petenyi |
| 1-0 | 72 |
2011 |
World Junior Championships | D35 Queen's Gambit Declined |
| 19. H Gusain vs T Petenyi |
| ½-½ | 67 |
2011 |
World Junior Championships | C60 Ruy Lopez |
| 20. S Kourkoulos-Arditis vs T Petenyi |
| 0-1 | 31 |
2011 |
World Junior Championships | B00 Uncommon King's Pawn Opening |
| 21. T Petenyi vs E Elijah |
| 1-0 | 63 |
2011 |
World Junior Championships | B90 Sicilian, Najdorf |
| 22. T Petenyi vs C Aravindh |
| ½-½ | 47 |
2011 |
World Junior Championships | B31 Sicilian, Rossolimo Variation |
| 23. T Petenyi vs N Surendran |
| 1-0 | 32 |
2011 |
World Junior Championships | B90 Sicilian, Najdorf |
| 24. M Turqueza vs T Petenyi |
| 1-0 | 73 |
2011 |
World Junior Championships | E00 Queen's Pawn Game |
| 25. P Patil vs T Petenyi |
| 1-0 | 39 |
2011 |
World Junior Championships | B22 Sicilian, Alapin |