| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Leko vs Leitao |
| ½-½ | 28 |
1991 |
? | B90 Sicilian, Najdorf |
| 2. A Rodriguez vs Leitao |
| 1-0 | 42 |
1992 |
Sao Paulo op | A48 King's Indian |
| 3. Shaked vs Leitao |
| 0-1 | 42 |
1992 |
WchJM U14 Duisburg | B96 Sicilian, Najdorf |
| 4. A Good vs Leitao |
 | 1-0 | 51 |
1993 |
Ch World (cadets) (under 14) | C55 Two Knights Defense |
| 5. Sadvakasov vs Leitao |
| 0-1 | 51 |
1993 |
Wch U14 | B23 Sicilian, Closed |
| 6. Francisco Luis vs Leitao |
| 1-0 | 34 |
1993 |
Ch World (cadets) (under 14) | C55 Two Knights Defense |
| 7. Leitao vs V Malakhov |
| 0-1 | 40 |
1993 |
Wch U14 | A50 Queen's Pawn Game |
| 8. Movsesian vs Leitao |
| 1-0 | 28 |
1994 |
Wch U16 | B50 Sicilian |
| 9. Leitao vs Sadvakasov |
| 1-0 | 39 |
1995 |
Wch U16 | A67 Benoni, Taimanov Variation |
| 10. Leitao vs Granda-Zuniga |
| 0-1 | 33 |
1995 |
Zonal Tournament Sao Paulo BRA | D31 Queen's Gambit Declined |
| 11. Leitao vs Kasimdzhanov |
| ½-½ | 32 |
1995 |
Wch U16 | E39 Nimzo-Indian, Classical, Pirc Variation |
| 12. Leitao vs Judit Polgar |
 | 1-0 | 66 |
1996 |
Match (active) | E76 King's Indian, Four Pawns Attack |
| 13. Leitao vs A Yegiazarian |
| ½-½ | 31 |
1996 |
Yerevan ol (Men) | E39 Nimzo-Indian, Classical, Pirc Variation |
| 14. D Gurevich vs Leitao |
| 0-1 | 45 |
1996 |
Groningen open | E99 King's Indian, Orthodox, Taimanov |
| 15. Judit Polgar vs Leitao |
| 1-0 | 61 |
1996 |
Match (active) | B48 Sicilian, Taimanov Variation |
| 16. Leitao vs Yurtaev |
| ½-½ | 79 |
1996 |
32nd ol Yerevan Armenia | E90 King's Indian |
| 17. Leitao vs V Malakhov |
| ½-½ | 75 |
1996 |
Wch U18 | D45 Queen's Gambit Declined Semi-Slav |
| 18. Leitao vs B Ivanovic |
| 1-0 | 30 |
1996 |
Yerevan ol (Men) | E76 King's Indian, Four Pawns Attack |
| 19. Leitao vs Shaked |
| 1-0 | 40 |
1996 |
Ch World (cadets) (under 18) | E76 King's Indian, Four Pawns Attack |
| 20. Baburin vs Leitao |
| ½-½ | 58 |
1996 |
32nd ol Yerevan Armenia | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 21. G Vescovi vs Leitao |
| ½-½ | 82 |
1998 |
Brazilian Championships Final | B92 Sicilian, Najdorf, Opocensky Variation |
| 22. E Matsuura vs Leitao |
| 0-1 | 48 |
1998 |
65th Brazilian Championships | E11 Bogo-Indian Defense |
| 23. W Borges vs Leitao |
| ½-½ | 35 |
1998 |
65th Brazilian Championships | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 24. Leitao vs G Vescovi |
| ½-½ | 11 |
1998 |
Brazilian Championships Final | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 25. Leitao vs E Matsuura |
| 1-0 | 40 |
1998 |
65th Brazilian Championships | E11 Bogo-Indian Defense |