| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. H Masse vs R Paz |
| ½-½ | 72 |
2001 |
ch-Quebec Prelim | B12 Caro-Kann Defense |
| 2. Gerald Michaud vs H Masse |
| 0-1 | 28 |
2001 |
COQ Open | D02 Queen's Pawn Game |
| 3. Y Vaingorten vs H Masse |
| ½-½ | 41 |
2001 |
COQ Open | D93 Grunfeld, with Bf4 & e3 |
| 4. M Voloaca vs H Masse |
| 0-1 | 78 |
2001 |
CAN-chJ | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 5. S Fillion vs H Masse |
 | 1-0 | 65 |
2001 |
ch-Quebec Prelim | B23 Sicilian, Closed |
| 6. H Masse vs M Fortier |
| 0-1 | 45 |
2001 |
COQ Open | B76 Sicilian, Dragon, Yugoslav Attack |
| 7. H Masse vs S Bolduc |
 | ½-½ | 44 |
2001 |
COQ Open | B12 Caro-Kann Defense |
| 8. H Masse vs J Gottlieb |
| ½-½ | 38 |
2001 |
Quebec-chJ U18 | B21 Sicilian, 2.f4 and 2.d4 |
| 9. H Masse vs J Trottier |
| 1-0 | 47 |
2001 |
ch-Quebec Prelim | B21 Sicilian, 2.f4 and 2.d4 |
| 10. Gulko vs H Masse |
 | 0-1 | 41 |
2001 |
COQ Open | A45 Queen's Pawn Game |
| 11. M Larochelle vs H Masse |
| 0-1 | 63 |
2001 |
ch-Quebec Prelim | D02 Queen's Pawn Game |
| 12. H Masse vs E Lawson |
| ½-½ | 37 |
2001 |
Quebec-chJ | B21 Sicilian, 2.f4 and 2.d4 |
| 13. H Masse vs G Mikanovic |
| 0-1 | 51 |
2001 |
COQ Open | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 14. F Gagnon vs H Masse |
| ½-½ | 28 |
2001 |
ch-Quebec Prelim | D79 Neo-Grunfeld, 6.O-O, Main line |
| 15. H Masse vs S Fillion |
| 1-0 | 31 |
2001 |
COQ Open | C02 French, Advance |
| 16. H Masse vs J Trottier |
| 1-0 | 45 |
2001 |
COQ Open | B01 Scandinavian |
| 17. C Hanley vs H Masse |
| 1-0 | 31 |
2003 |
World Junior Championships | C82 Ruy Lopez, Open |
| 18. M Panchanathan vs H Masse |
| 1-0 | 28 |
2003 |
World Junior Championships | C82 Ruy Lopez, Open |
| 19. H Masse vs S Gravel |
| 0-1 | 40 |
2004 |
77th Canadian Championship | A57 Benko Gambit |
| 20. O Tessier-Desrosiers vs H Masse |
| 0-1 | 28 |
2004 |
77th Canadian Championship | A16 English |
| 21. S Belzberg vs H Masse |
| 0-1 | 38 |
2004 |
77th Canadian Championship | D85 Grunfeld |
| 22. H Masse vs N Noritsyn |
| 0-1 | 30 |
2004 |
77th Canadian Championship | D31 Queen's Gambit Declined |
| 23. H Masse vs Igor Ivanov |
| 0-1 | 33 |
2004 |
77th Canadian Championship | A40 Queen's Pawn Game |
| 24. H Masse vs G Mikanovic |
| ½-½ | 70 |
2004 |
77th Canadian Championship | E32 Nimzo-Indian, Classical |
| 25. H Masse vs R Gardner |
| ½-½ | 22 |
2004 |
77th Canadian Championship | A41 Queen's Pawn Game (with ...d6) |