| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. M Sisniega vs R Vera |
| 1-0 | 31 | 1991 | Mexico City Latin American Cup Open | B80 Sicilian, Scheveningen |
| 252. Y Hernandez Guerrero vs M Sisniega |
| 0-1 | 33 | 1991 | Mexico City Latin American Cup Open | B90 Sicilian, Najdorf |
| 253. M Sisniega vs M Herrera Ortiz |
| 1-0 | 26 | 1991 | Mexico City Latin American Cup Open | A07 King's Indian Attack |
| 254. R Ocampo Vargas vs M Sisniega |
| 0-1 | 41 | 1991 | Mexico City Latin American Cup Open | B06 Robatsch |
| 255. A Rodriguez vs M Sisniega |
| ½-½ | 35 | 1991 | Mexico City Latin American Cup Open | C92 Ruy Lopez, Closed |
| 256. G Hernandez Guerrero vs M Sisniega |
| ½-½ | 25 | 1991 | Mexico City Latin American Cup Open | C92 Ruy Lopez, Closed |
| 257. M Sisniega vs J Sunye Neto |
| ½-½ | 11 | 1991 | Mexico City Latin American Cup Open | B42 Sicilian, Kan |
| 258. M Sisniega vs G Milos |
| 0-1 | 46 | 1991 | Sao Paulo Latin American Cup Open | C89 Ruy Lopez, Marshall |
| 259. I Ibragimov vs M Sisniega |
| 1-0 | 23 | 1991 | Sao Paulo Latin American Cup Open | E43 Nimzo-Indian, Fischer Variation |
| 260. M Sisniega vs D Lima |
| 1-0 | 62 | 1991 | Sao Paulo Latin American Cup Open | C64 Ruy Lopez, Classical |
| 261. M Sisniega vs J E Aramuni |
| 1-0 | 44 | 1991 | Sao Paulo Latin American Cup Open | A14 English |
| 262. J Pelikian vs M Sisniega |
| ½-½ | 72 | 1991 | Sao Paulo Latin American Cup Open | C68 Ruy Lopez, Exchange |
| 263. M Sisniega vs Joao Felicio |
| 1-0 | 42 | 1991 | Sao Paulo Latin American Cup Open | A18 English, Mikenas-Carls |
| 264. C Braga vs M Sisniega |
| ½-½ | 46 | 1991 | Sao Paulo Latin American Cup Open | A07 King's Indian Attack |
| 265. M Sisniega vs W Martins Madeira |
| 1-0 | 41 | 1991 | Sao Paulo Latin American Cup Open | B33 Sicilian |
| 266. H Camara vs M Sisniega |
| ½-½ | 85 | 1991 | Sao Paulo Latin American Cup Open | A46 Queen's Pawn Game |
| 267. M Sisniega vs A A Correa |
| 1-0 | 57 | 1991 | Sao Paulo Latin American Cup Open | B01 Scandinavian |
| 268. A Sorin vs M Sisniega |
| 0-1 | 43 | 1991 | Sao Paulo Latin American Cup Open | E11 Bogo-Indian Defense |
| 269. M Sisniega vs J Escofet |
| 1-0 | 63 | 1991 | 4th Pan American Team Championship | B18 Caro-Kann, Classical |
| 270. Panno vs M Sisniega |
| ½-½ | 19 | 1991 | 4th Pan American Team Championship | A17 English |
| 271. M Sisniega vs J Nogueiras |
| ½-½ | 14 | 1991 | 4th Pan American Team Championship | B05 Alekhine's Defense, Modern |
| 272. A Zapata vs M Sisniega |
| 1-0 | 44 | 1991 | 4th Pan American Team Championship | C90 Ruy Lopez, Closed |
| 273. R Vasquez Schroeder vs M Sisniega |
| 1-0 | 42 | 1991 | 4th Pan American Team Championship | C44 King's Pawn Game |
| 274. M Sisniega vs J Sunye Neto |
| ½-½ | 59 | 1991 | 4th Pan American Team Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 275. M Sisniega vs A Rodriguez |
| ½-½ | 11 | 1991 | Latin Cup Final | C42 Petrov Defense |
Kibitzing
