| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. B Roselli Mailhe vs W Estrada Degrandi |
| ½-½ | 53 |
1984 |
URU-ch | B40 Sicilian |
| 2. B Roselli Mailhe vs C Silva Sanchez |
| ½-½ | 74 |
1987 |
Santiago zt | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 3. B Roselli Mailhe vs J Renteria |
| 0-1 | 53 |
2001 |
I American Continental | B25 Sicilian, Closed |
| 4. B Roselli Mailhe vs A Hoffman |
| ½-½ | 10 |
2001 |
1st Masters | B25 Sicilian, Closed |
| 5. B Roselli Mailhe vs Rafael Arrubarrena |
| 1-0 | 31 |
2001 |
I American Continental | B24 Sicilian, Closed |
| 6. B Roselli Mailhe vs L Liascovich |
| 1-0 | 49 |
2001 |
ITT Cono Sur | B32 Sicilian |
| 7. B Roselli Mailhe vs H Van Riemsdijk |
| 1-0 | 29 |
2001 |
1st Masters | B23 Sicilian, Closed |
| 8. B Roselli Mailhe vs Arias Bouzada, Jorge |
| 1-0 | 38 |
2001 |
URU-chT Interclubes | B32 Sicilian |
| 9. B Roselli Mailhe vs Larsen |
| 0-1 | 50 |
2001 |
1st Masters | B32 Sicilian |
| 10. B Roselli Mailhe vs V Palermo |
| ½-½ | 41 |
2001 |
32nd Open | B25 Sicilian, Closed |
| 11. B Roselli Mailhe vs L Valenzuela Fuentealba |
| 0-1 | 33 |
2002 |
Bled Olympiad | B25 Sicilian, Closed |
| 12. B Roselli Mailhe vs L Valdes |
| 1-0 | 34 |
2002 |
Bled Olympiad | B33 Sicilian |
| 13. B Roselli Mailhe vs N De Silva |
 | 1-0 | 30 |
2002 |
Bled Olympiad | B25 Sicilian, Closed |
| 14. B Roselli Mailhe vs J Hobaica |
| 1-0 | 56 |
2003 |
Torneo Continental Americano | B23 Sicilian, Closed |
| 15. B Roselli Mailhe vs Nakamura |
| 0-1 | 42 |
2003 |
Torneo Continental Americano | B25 Sicilian, Closed |
| 16. B Roselli Mailhe vs Kudrin |
| ½-½ | 25 |
2003 |
Torneo Continental Americano | B25 Sicilian, Closed |
| 17. B Roselli Mailhe vs J Vera Infran |
| 1-0 | 69 |
2003 |
Torneo Continental Americano | B25 Sicilian, Closed |
| 18. B Roselli Mailhe vs G Van der Stricht |
| 0-1 | 52 |
2004 |
36th Olympiad | B23 Sicilian, Closed |
| 19. B Roselli Mailhe vs I Morovic |
| ½-½ | 26 |
2004 |
36th Olympiad | B25 Sicilian, Closed |
| 20. B Roselli Mailhe vs J Cueto |
| 1-0 | 32 |
2004 |
36th Olympiad | B34 Sicilian, Accelerated Fianchetto |
| 21. B Roselli Mailhe vs T Kyriakidis |
| 1-0 | 19 |
2004 |
36th Olympiad | B34 Sicilian, Accelerated Fianchetto |
| 22. B Roselli Mailhe vs J Lopez Falcon |
| ½-½ | 25 |
2008 |
ch-URU | B25 Sicilian, Closed |