| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. L Fonseca Piccoli vs K Marques Silva |
| 0-1 | 54 | 2023 | Rio Chess Open | B33 Sicilian |
| 27. C Silva vs L Fonseca Piccoli |
| ½-½ | 34 | 2023 | Rio Chess Open | E11 Bogo-Indian Defense |
| 28. L Fonseca Piccoli vs Y Santiago |
| 0-1 | 32 | 2023 | Rio Chess Open | B12 Caro-Kann Defense |
| 29. R Torella vs L Fonseca Piccoli |
| 0-1 | 46 | 2023 | Rio Chess Open | A07 King's Indian Attack |
| 30. L Fonseca Piccoli vs F Oro |
| 0-1 | 117 | 2023 | ch-Panamerican U20 | A28 English |
| 31. L Fonseca Piccoli vs L P Supi |
| ½-½ | 52 | 2023 | Brazilian Championship | B62 Sicilian, Richter-Rauzer |
| 32. R Molina vs L Fonseca Piccoli |
| 1-0 | 64 | 2023 | Brazilian Championship | D32 Queen's Gambit Declined, Tarrasch |
| 33. L Fonseca Piccoli vs R Quintiliano Pinto |
| 0-1 | 43 | 2024 | Manaus Chess Classic | B92 Sicilian, Najdorf, Opocensky Variation |
| 34. D Di Berardino vs L Fonseca Piccoli |
| ½-½ | 34 | 2024 | Manaus Chess Classic | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 35. S L Narayanan vs L Fonseca Piccoli |
| 1-0 | 42 | 2025 | Roquetas de Mar Open | E49 Nimzo-Indian, 4.e3, Botvinnik System |
| 36. H Grieve vs L Fonseca Piccoli |
| ½-½ | 41 | 2025 | Roquetas de Mar Open | B31 Sicilian, Rossolimo Variation |
| 37. L Fonseca Piccoli vs J Fiorito |
| 0-1 | 33 | 2025 | Roquetas de Mar Open | B84 Sicilian, Scheveningen |
| 38. L Fonseca Piccoli vs A Ventura Sousa |
| 1-0 | 78 | 2025 | Roquetas de Mar Open | B13 Caro-Kann, Exchange |
| 39. Iturrizaga Bonelli vs L Fonseca Piccoli |
| ½-½ | 131 | 2025 | Semana Santa Open | A13 English |
| 40. L Fonseca Piccoli vs D Flores Quillas |
| 0-1 | 54 | 2025 | Semana Santa Open | B60 Sicilian, Richter-Rauzer |
| 41. M de Souza Pessoa vs L Fonseca Piccoli |
| 0-1 | 44 | 2025 | American Continental | A46 Queen's Pawn Game |
| 42. J G Cardoso Cardoso vs L Fonseca Piccoli |
| 1-0 | 31 | 2025 | American Continental | E29 Nimzo-Indian, Samisch |
| 43. L Fonseca Piccoli vs R Sperb Becker |
| 1-0 | 55 | 2025 | American Continental | B33 Sicilian |
| 44. L Fonseca Piccoli vs A Souza Neves |
| 1-0 | 44 | 2025 | American Continental | B12 Caro-Kann Defense |
| 45. B Hardaway vs L Fonseca Piccoli |
| ½-½ | 43 | 2025 | American Continental | C55 Two Knights Defense |
Kibitzing
