| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 76. G Garcia vs P H Donoso Velasco |
| 0-1 | 43 | 1978 | Buenos Aires Olympiad | C75 Ruy Lopez, Modern Steinitz Defense |
| 77. P H Donoso Velasco vs S Hamann |
| 0-1 | 39 | 1978 | Buenos Aires Olympiad | B85 Sicilian, Scheveningen, Classical |
| 78. R Jamieson vs P H Donoso Velasco |
| ½-½ | 39 | 1978 | Buenos Aires Olympiad | C66 Ruy Lopez |
| 79. Shamkovich vs P H Donoso Velasco |
| 1-0 | 54 | 1980 | Valletta Olympiad | C91 Ruy Lopez, Closed |
| 80. P Roth vs P H Donoso Velasco |
| 1-0 | 50 | 1980 | Valletta Olympiad | B56 Sicilian |
| 81. P H Donoso Velasco vs J Lhagva |
| 1-0 | 33 | 1980 | Valletta Olympiad | E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation |
Kibitzing
