Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. P Grandadam vs G Lamard |
| ½-½ | 33 | 2006 | FRA-ch U08 | D11 Queen's Gambit Declined Slav |
2. P Grandadam vs A Manoeuvre |
 | 1-0 | 13 | 2008 | Grand Prix CCAS | E94 King's Indian, Orthodox |
3. T Laurusas vs P Grandadam |
| 1-0 | 27 | 2010 | WYCC Open U14 | D31 Queen's Gambit Declined |
4. P Grandadam vs G Koushik |
| 0-1 | 25 | 2010 | WYCC Open U14 | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
5. P Grandadam vs K Sai |
| 0-1 | 30 | 2010 | WYCC Open U14 | E94 King's Indian, Orthodox |
6. M Stojanovic vs P Grandadam |
| 1-0 | 38 | 2010 | 34th Christmas Master Open | E04 Catalan, Open, 5.Nf3 |
7. P Nguyen vs P Grandadam |
 | 1-0 | 54 | 2011 | Cappelle Open | D05 Queen's Pawn Game |
8. R Pogorelov vs P Grandadam |
| ½-½ | 48 | 2011 | Cappelle Open | D02 Queen's Pawn Game |
9. P Grandadam vs C Nguyen |
| 1-0 | 25 | 2011 | Cappelle Open | A04 Reti Opening |
10. V Petkov vs P Grandadam |
| 1-0 | 40 | 2011 | Cappelle Open | A13 English |
11. P Grandadam vs A Wirig |
| 0-1 | 28 | 2011 | Cappelle Open | A18 English, Mikenas-Carls |
12. Korchnoi vs P Grandadam |
| 0-1 | 30 | 2011 | Zuerich Kortschnoj 80th sim | B41 Sicilian, Kan |
13. A Shneider vs P Grandadam |
| 1-0 | 37 | 2012 | Cappelle Open | E04 Catalan, Open, 5.Nf3 |
14. K Chernyshov vs P Grandadam |
| 1-0 | 36 | 2012 | Cappelle Open | D02 Queen's Pawn Game |
15. P Grandadam vs A Raetsky |
| ½-½ | 23 | 2012 | ch-SUI Hauptturnier 1 | D07 Queen's Gambit Declined, Chigorin Defense |
16. M Sher vs P Grandadam |
| ½-½ | 66 | 2012 | ch-SUI Hauptturnier 1 | A01 Nimzovich-Larsen Attack |
17. P Grandadam vs B Filipovic |
| ½-½ | 39 | 2012 | ch-SUI Hauptturnier 1 | A04 Reti Opening |
18. P Grandadam vs G Botta |
| ½-½ | 24 | 2012 | ch-SUI Hauptturnier 1 | D44 Queen's Gambit Declined Semi-Slav |
19. J Jurek vs P Grandadam |
| ½-½ | 21 | 2012 | ch-SUI Hauptturnier 1 | E04 Catalan, Open, 5.Nf3 |
20. P Grandadam vs O Moor |
| 0-1 | 46 | 2012 | ch-SUI Hauptturnier 1 | D63 Queen's Gambit Declined, Orthodox Defense |
21. J Gallagher vs P Grandadam |
| ½-½ | 36 | 2014 | 47th Biel Master Open | B01 Scandinavian |
22. P Grandadam vs M Cebalo |
| ½-½ | 34 | 2014 | 47th Biel Master Open | A55 Old Indian, Main line |
23. K Alekseenko vs P Grandadam |
| 1-0 | 30 | 2016 | World Junior Championship | B47 Sicilian, Taimanov (Bastrikov) Variation |
24. P Grandadam vs D Papakonstantinou |
 | 1-0 | 50 | 2016 | World Junior Championship | E94 King's Indian, Orthodox |
25. Joni Seppala vs P Grandadam |
| 0-1 | 28 | 2016 | World Junior Championship | D51 Queen's Gambit Declined |