| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 76. R Prasca Sosa vs A Pena |
| 1-0 | 67 | 2007 | Cali Continental Open | C45 Scotch Game |
| 77. C Vittorino vs R Prasca Sosa |
| 0-1 | 27 | 2007 | Cali Continental Open | D45 Queen's Gambit Declined Semi-Slav |
| 78. R Prasca Sosa vs J Cori |
| ½-½ | 24 | 2007 | Cali Continental Open | C15 French, Winawer |
| 79. K Spraggett vs R Prasca Sosa |
| ½-½ | 56 | 2007 | Cali Continental Open | C16 French, Winawer |
| 80. R Prasca Sosa vs R Felgaer |
| 0-1 | 44 | 2007 | Cali Continental Open | B43 Sicilian, Kan, 5.Nc3 |
| 81. F Osorio Itanare vs R Prasca Sosa |
| ½-½ | 11 | 2008 | ch-VEN | C01 French, Exchange |
| 82. R Prasca Sosa vs R Zelcic |
 | 1-0 | 89 | 2008 | Dresden Olympiad | B18 Caro-Kann, Classical |
| 83. L'Ami vs R Prasca Sosa |
| 1-0 | 36 | 2008 | Dresden Olympiad | C16 French, Winawer |
| 84. R Frick vs R Prasca Sosa |
| 0-1 | 51 | 2008 | Dresden Olympiad | C00 French Defense |
| 85. Y Quesada Perez vs R Prasca Sosa |
| 1-0 | 43 | 2008 | Dresden Olympiad | B32 Sicilian |
| 86. R Prasca Sosa vs S Abu Sufian |
| ½-½ | 27 | 2008 | Dresden Olympiad | B32 Sicilian |
| 87. R Prasca Sosa vs T Nedev |
| ½-½ | 35 | 2008 | Dresden Olympiad | B30 Sicilian |
| 88. G Mooney vs R Prasca Sosa |
| 0-1 | 27 | 2008 | Dresden Olympiad | C00 French Defense |
| 89. R Prasca Sosa vs H R Steel |
| 1-0 | 37 | 2008 | Dresden Olympiad | B46 Sicilian, Taimanov Variation |
| 90. S Yohannes vs R Prasca Sosa |
| ½-½ | 91 | 2008 | Dresden Olympiad | D12 Queen's Gambit Declined Slav |
| 91. R Prasca Sosa vs V Meijers |
| 0-1 | 30 | 2008 | Dresden Olympiad | B43 Sicilian, Kan, 5.Nc3 |
| 92. R Prasca Sosa vs O Almeida Quintana |
| ½-½ | 66 | 2009 | XLIV Capablanca Memorial Open | B06 Robatsch |
| 93. L Valdes vs R Prasca Sosa |
| ½-½ | 56 | 2009 | Torneo Zonal FIDE 2.3 Masculino | A06 Reti Opening |
| 94. R Prasca Sosa vs N Delgado Ramirez |
| ½-½ | 39 | 2009 | Torneo Zonal FIDE 2.3 Masculino | B58 Sicilian |
| 95. F Hernandez Basante vs R Prasca Sosa |
| ½-½ | 49 | 2009 | Torneo Zonal FIDE 2.3 Masculino | D02 Queen's Pawn Game |
| 96. R Prasca Sosa vs L Arias |
| ½-½ | 33 | 2009 | Torneo Zonal FIDE 2.3 Masculino | B43 Sicilian, Kan, 5.Nc3 |
| 97. B Gonzalez vs R Prasca Sosa |
| ½-½ | 28 | 2009 | Torneo Zonal FIDE 2.3 Masculino | D15 Queen's Gambit Declined Slav |
| 98. R Prasca Sosa vs O G Sanchez Enriquez |
| ½-½ | 59 | 2009 | Torneo Zonal FIDE 2.3 Masculino | C04 French, Tarrasch, Guimard Main line |
| 99. R Prasca Sosa vs B Gongora Montes |
| 1-0 | 51 | 2009 | Torneo Zonal FIDE 2.3 Masculino | C05 French, Tarrasch |
| 100. R Prasca Sosa vs L Bruzon Batista |
| ½-½ | 9 | 2009 | Torneo Zonal FIDE 2.3 Masculino | C42 Petrov Defense |
Kibitzing
