| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J de Sousa vs E Schiller |
| 0-1 | 44 | 1988 | Pan American Intercollegiate | D31 Queen's Gambit Declined |
| 2. J de Sousa vs J Pivard |
| ½-½ | 29 | 1990 | Cannes Open | B16 Caro-Kann, Bronstein-Larsen Variation |
| 3. F Astolfi vs J de Sousa |
| 1-0 | 42 | 1990 | Cannes Open | A80 Dutch |
| 4. J de Sousa vs L Boros |
| 0-1 | 60 | 1990 | Cannes Open | B32 Sicilian |
| 5. B Tasic vs J de Sousa |
| 1-0 | 41 | 1990 | Cannes Open | A81 Dutch |
| 6. J de Sousa vs F Marchand |
| ½-½ | 19 | 1990 | Cannes Open | B45 Sicilian, Taimanov |
| 7. J Stranjakovitch vs J de Sousa |
| 1-0 | 30 | 1990 | Cannes Open | A80 Dutch |
| 8. M Goldstein vs J de Sousa |
 | 1-0 | 66 | 1990 | Cannes Open | A81 Dutch |
| 9. J de Sousa vs M Didier |
| 1-0 | 55 | 1990 | Cannes Open | B09 Pirc, Austrian Attack |
| 10. J de Sousa vs H Meissner |
| ½-½ | 24 | 1991 | Cappelle Open | C86 Ruy Lopez, Worrall Attack |
| 11. D Komarov vs J de Sousa |
| 1-0 | 30 | 1992 | Belfort op | E11 Bogo-Indian Defense |
| 12. J de Sousa vs S W Giddins |
| 0-1 | 31 | 1992 | Hastings Challengers 1991/92 | C18 French, Winawer |
| 13. J de Sousa vs K Spraggett |
| 0-1 | 59 | 1996 | Loures (Portugal) | A53 Old Indian |
| 14. L Bergez vs J de Sousa |
| 0-1 | 42 | 1996 | Bagneux | E24 Nimzo-Indian, Samisch |
| 15. J de Sousa vs P Kiss |
| ½-½ | 40 | 1997 | Eger | B33 Sicilian |
| 16. J de Sousa vs I Nataf |
| 0-1 | 34 | 1997 | FRA-chTA 9697 | E80 King's Indian, Samisch Variation |
| 17. J de Sousa vs R Cifuentes |
| 0-1 | 39 | 1997 | Linares Anibal Open | D28 Queen's Gambit Accepted, Classical |
| 18. A Antunes vs J de Sousa |
| 1-0 | 31 | 1998 | POR-chT | A79 Benoni, Classical, 11.f3 |
| 19. A Kosten vs J de Sousa |
| 1-0 | 48 | 1999 | FRA-chT | A14 English |
| 20. J de Sousa vs G Beikert |
| 0-1 | 35 | 1999 | FRA-chT | B44 Sicilian |
| 21. J de Sousa vs A Zontakh |
| 0-1 | 35 | 2003 | Cappelle Open | B18 Caro-Kann, Classical |
| 22. D Hennig vs J de Sousa |
| 1-0 | 66 | 2010 | Tch-POR 1st Div Final | A45 Queen's Pawn Game |
| 23. J de Sousa vs Ftacnik |
| 0-1 | 28 | 2010 | Tch-POR 1st Div Final | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 24. J de Sousa vs S Maze |
| 0-1 | 64 | 2011 | French Team Championship | B53 Sicilian |
| 25. A Sokolov vs J de Sousa |
| 1-0 | 32 | 2011 | French Team Championship | B49 Sicilian, Taimanov Variation |
Kibitzing
