| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. E Prie vs R Mascarinas |
| 1-0 | 51 | 1990 | Novi Sad Olympiad | B80 Sicilian, Scheveningen |
| 252. F Briffel Sobrinho vs R Mascarinas |
| ½-½ | 41 | 1990 | Novi Sad Olympiad | A15 English |
| 253. R Mascarinas vs F El Taher |
| ½-½ | 35 | 1990 | Novi Sad Olympiad | A15 English |
| 254. Adorjan vs R Mascarinas |
| ½-½ | 71 | 1991 | Bacolod | A43 Old Benoni |
| 255. R Mascarinas vs E Torre |
| ½-½ | 23 | 1991 | Bacolod | B07 Pirc |
| 256. Ftacnik vs R Mascarinas |
| 1-0 | 59 | 1991 | Bacolod | E91 King's Indian |
| 257. R Mascarinas vs A Wojtkiewicz |
| ½-½ | 9 | 1991 | Bacolod | B22 Sicilian, Alapin |
| 258. A Wojtkiewicz vs R Mascarinas |
| 1-0 | 36 | 1991 | Manila Open | A15 English |
| 259. R Mascarinas vs M Godena |
| ½-½ | 17 | 1991 | Grand Prix Suisse op | B07 Pirc |
| 260. V Bouchaud vs R Mascarinas |
| 0-1 | 42 | 1991 | Geneva Open | A56 Benoni Defense |
| 261. R Mascarinas vs J Gallagher |
| ½-½ | 10 | 1991 | Geneva Open | B40 Sicilian |
| 262. G Markotic vs R Mascarinas |
| 1-0 | 32 | 1991 | Geneva Open | D35 Queen's Gambit Declined |
| 263. A Strikovic vs R Mascarinas |
| 1-0 | 45 | 1991 | Geneva Open | B20 Sicilian |
| 264. R Mascarinas vs Tukmakov |
| 0-1 | 41 | 1991 | Bern op | A40 Queen's Pawn Game |
| 265. Gilani vs R Mascarinas |
| 0-1 | 56 | 1992 | Asia Cities-ch | B80 Sicilian, Scheveningen |
| 266. R Rodriguez vs R Mascarinas |
| 0-1 | 63 | 1992 | Cebu | D20 Queen's Gambit Accepted |
| 267. R Mascarinas vs N Murshed |
| ½-½ | 27 | 1992 | Cebu | D20 Queen's Gambit Accepted |
| 268. B Nadera vs R Mascarinas |
| 1-0 | 46 | 1992 | Cebu | D21 Queen's Gambit Accepted |
| 269. D Barua vs R Mascarinas |
| ½-½ | 62 | 1992 | Cebu | B83 Sicilian |
| 270. R Mascarinas vs F Donguines |
| 0-1 | 28 | 1992 | Cebu | B06 Robatsch |
| 271. R Antonio vs R Mascarinas |
| ½-½ | 43 | 1992 | Cebu | B40 Sicilian |
| 272. R Mascarinas vs R Ye |
| 0-1 | 33 | 1992 | Cebu | A04 Reti Opening |
| 273. R Barcenilla vs R Mascarinas |
| ½-½ | 55 | 1992 | Cebu | B83 Sicilian |
| 274. R Mascarinas vs I Rogers |
| ½-½ | 12 | 1992 | Cebu | E11 Bogo-Indian Defense |
| 275. Khalifman vs R Mascarinas |
 | 1-0 | 27 | 1992 | Manila Olympiad | D20 Queen's Gambit Accepted |
Kibitzing
