| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. G Otero vs J M Sosa Macho |
 | 0-1 | 6 | 2003 | URU-ch | A12 English with b3 |
| 27. G Diano vs J M Sosa Macho |
| 0-1 | 27 | 2017 | Uruguayan Championship semifinal | B33 Sicilian |
| 28. M Michailov vs J M Sosa Macho |
| 1-0 | 73 | 2017 | Uruguayan Championship semifinal | B33 Sicilian |
| 29. J M Sosa Macho vs N Lima Abadal |
| 1-0 | 36 | 2017 | Uruguayan Championship semifinal | D35 Queen's Gambit Declined |
| 30. C Oddone vs J M Sosa Macho |
| 1-0 | 31 | 2017 | Uruguayan Championship semifinal | A07 King's Indian Attack |
| 31. J M Sosa Macho vs I Pinero |
| 1-0 | 32 | 2017 | Uruguayan Championship semifinal | E85 King's Indian, Samisch, Orthodox Variation |
| 32. D Ferreyra vs J M Sosa Macho |
| 0-1 | 40 | 2017 | Uruguayan Championship semifinal | E76 King's Indian, Four Pawns Attack |
| 33. J M Sosa Macho vs S Izquierdo |
| 0-1 | 40 | 2017 | Uruguayan Championship semifinal | E32 Nimzo-Indian, Classical |
| 34. J M Sosa Macho vs S Montoli |
| 1-0 | 25 | 2017 | Uruguayan Championship semifinal | D52 Queen's Gambit Declined |
| 35. J M Sosa Macho vs E Scarella |
| 0-1 | 51 | 2019 | Montevideo Duchamp Cup 3rd | A53 Old Indian |
Kibitzing
