| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. G Vescovi vs Leitao |
| ½-½ | 82 |
1998 |
Brazilian Championships Final | B92 Sicilian, Najdorf, Opocensky Variation |
| 27. E Matsuura vs Leitao |
| 0-1 | 48 |
1998 |
65th Brazilian Championships | E11 Bogo-Indian Defense |
| 28. W Borges vs Leitao |
| ½-½ | 35 |
1998 |
65th Brazilian Championships | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 29. Leitao vs G Vescovi |
| ½-½ | 11 |
1998 |
Brazilian Championships Final | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 30. Leitao vs E Matsuura |
| 1-0 | 40 |
1998 |
65th Brazilian Championships | E11 Bogo-Indian Defense |
| 31. G Batista vs Leitao |
| 0-1 | 49 |
1998 |
65th Brazilian Championships | B53 Sicilian |
| 32. J Rohl vs Leitao |
 | 0-1 | 31 |
1998 |
Pan American | B92 Sicilian, Najdorf, Opocensky Variation |
| 33. G Vescovi vs Leitao |
| 0-1 | 36 |
1998 |
Brazilian Championships Final | B05 Alekhine's Defense, Modern |
| 34. Leitao vs E Matsuura |
| ½-½ | 40 |
1998 |
65th Brazilian Championships | D20 Queen's Gambit Accepted |
| 35. Leitao vs G Batista |
| 1-0 | 37 |
1998 |
65th Brazilian Championships | E74 King's Indian, Averbakh, 6...c5 |
| 36. Leitao vs Baburin |
 | 1-0 | 21 |
1998 |
Europe-Americas | D27 Queen's Gambit Accepted, Classical |
| 37. E Matsuura vs Leitao |
| ½-½ | 43 |
1998 |
65th Brazilian Championships | E25 Nimzo-Indian, Samisch |
| 38. Glek vs Leitao |
| ½-½ | 73 |
1999 |
Hoogovens B | B50 Sicilian |
| 39. Leitao vs De Vreugt |
| 1-0 | 44 |
1999 |
Hoogovens B Tournament | D94 Grunfeld |
| 40. Leitao vs Nisipeanu |
| ½-½ | 23 |
1999 |
Ch World FIDE, Las Vegas (USA) | E14 Queen's Indian |
| 41. Leitao vs Nijboer |
| 1-0 | 37 |
1999 |
Hoogovens B | A16 English |
| 42. Van der Wiel vs Leitao |
 | ½-½ | 47 |
1999 |
Hoogovens B Tournament | B86 Sicilian, Fischer-Sozin Attack |
| 43. Macieja vs Leitao |
| ½-½ | 46 |
1999 |
Ch World FIDE, Las Vegas (USA) | B23 Sicilian, Closed |
| 44. Van Den Doel vs Leitao |
| 0-1 | 45 |
1999 |
Hoogovens B | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 45. Nisipeanu vs Leitao |
| 1-0 | 48 |
1999 |
Ch World FIDE (play-off), Las Vegas (USA) | B92 Sicilian, Najdorf, Opocensky Variation |
| 46. M Brodsky vs Leitao |
| ½-½ | 18 |
1999 |
Hoogovens-B | B03 Alekhine's Defense |
| 47. Leitao vs Lputian |
| ½-½ | 41 |
1999 |
Hoogovens B Tournament | D31 Queen's Gambit Declined |
| 48. Leitao vs Macieja |
| 1-0 | 39 |
1999 |
Ch World FIDE, Las Vegas (USA) | E11 Bogo-Indian Defense |
| 49. Leitao vs R Janssen |
| ½-½ | 117 |
1999 |
Hoogovens B | E39 Nimzo-Indian, Classical, Pirc Variation |
| 50. Leitao vs Nisipeanu |
| ½-½ | 45 |
1999 |
Ch World FIDE (play-off), Las Vegas (USA) | E15 Queen's Indian |