| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J G Cardoso Cardoso vs M J Oosthuizen |
| 1-0 | 27 | 2016 | World Cadets U12 | D35 Queen's Gambit Declined |
| 2. A U Uzumcu vs J G Cardoso Cardoso |
| 1-0 | 31 | 2016 | World Cadets U12 | B90 Sicilian, Najdorf |
| 3. J G Cardoso Cardoso vs G M Grigoryan |
| 1-0 | 18 | 2016 | World Cadets U12 | D31 Queen's Gambit Declined |
| 4. D Kirillov vs J G Cardoso Cardoso |
| 0-1 | 34 | 2016 | World Cadets U12 | B90 Sicilian, Najdorf |
| 5. J G Cardoso Cardoso vs A Eynullayev |
| ½-½ | 40 | 2016 | World Cadets U12 | D97 Grunfeld, Russian |
| 6. E Ozenir vs J G Cardoso Cardoso |
| 1-0 | 69 | 2016 | World Cadets U12 | A45 Queen's Pawn Game |
| 7. J G Cardoso Cardoso vs E Csiki |
| 1-0 | 46 | 2016 | World Cadets U12 | E81 King's Indian, Samisch |
| 8. D Dardha vs J G Cardoso Cardoso |
| ½-½ | 39 | 2016 | World Cadets U12 | A45 Queen's Pawn Game |
| 9. J G Cardoso Cardoso vs Sindarov |
| 0-1 | 47 | 2016 | World Cadets U12 | E82 King's Indian, Samisch, double Fianchetto Variation |
| 10. F Bettalli vs J G Cardoso Cardoso |
 | 0-1 | 44 | 2016 | World Cadets U12 | E92 King's Indian |
| 11. J G Cardoso Cardoso vs V Manafov |
| 1-0 | 64 | 2016 | World Cadets U12 | A42 Modern Defense, Averbakh System |
| 12. J G Cardoso Cardoso vs Salem Alothman |
 | 1-0 | 32 | 2018 | Batumi Olympiad | D34 Queen's Gambit Declined, Tarrasch |
| 13. Garang Akech Mareu vs J G Cardoso Cardoso |
| 0-1 | 51 | 2018 | Batumi Olympiad | B90 Sicilian, Najdorf |
| 14. J G Cardoso Cardoso vs R Sang |
| 1-0 | 53 | 2018 | Batumi Olympiad | D11 Queen's Gambit Declined Slav |
| 15. V Ivic vs J G Cardoso Cardoso |
| 1-0 | 27 | 2018 | Batumi Olympiad | B92 Sicilian, Najdorf, Opocensky Variation |
| 16. J Munoz Sanchez vs J G Cardoso Cardoso |
| ½-½ | 34 | 2018 | Batumi Olympiad | E16 Queen's Indian |
| 17. J G Cardoso Cardoso vs Niemann |
| 1-0 | 35 | 2019 | World Youth Open U16 | E46 Nimzo-Indian |
| 18. S Avila Pavas vs J G Cardoso Cardoso |
| 1-0 | 30 | 2019 | COL Olympiad Selection | B90 Sicilian, Najdorf |
| 19. J G Cardoso Cardoso vs D Alivodic |
| 1-0 | 40 | 2020 | FIDE Online Olympiad | D02 Queen's Pawn Game |
| 20. M Abdulla vs J G Cardoso Cardoso |
| 0-1 | 61 | 2020 | FIDE Online Olympiad | B90 Sicilian, Najdorf |
| 21. J G Cardoso Cardoso vs M Wadsworth |
| 0-1 | 43 | 2020 | FIDE Online Olympiad | A60 Benoni Defense |
| 22. Joshua Quesada Leon vs J G Cardoso Cardoso |
| 0-1 | 34 | 2020 | FIDE Online Olympiad | B21 Sicilian, 2.f4 and 2.d4 |
| 23. J G Cardoso Cardoso vs I Tello Chavez |
| ½-½ | 42 | 2020 | FIDE Online Olympiad | D27 Queen's Gambit Accepted, Classical |
| 24. L Coro vs J G Cardoso Cardoso |
| 1-0 | 41 | 2020 | FIDE Online Olympiad | B30 Sicilian |
| 25. J G Cardoso Cardoso vs B Escalante Ramirez |
| 1-0 | 40 | 2020 | COL Tierra de Atletas-A | A58 Benko Gambit |
Kibitzing
