| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. Y Hou vs M Fierro |
 | 1-0 | 52 | 2011 | European Club Cup (Women) | B01 Scandinavian |
| 252. S Johnsen vs M Fierro |
| 0-1 | 43 | 2011 | European Club Cup (Women) | A36 English |
| 253. M Fierro vs B C Yildiz Kadioglu |
| 1-0 | 48 | 2011 | European Club Cup (Women) | A20 English |
| 254. M Fierro vs A Dimitrijevic |
| ½-½ | 51 | 2011 | European Club Cup (Women) | A11 English, Caro-Kann Defensive System |
| 255. M Fierro vs R Barria Baker |
| 1-0 | 32 | 2012 | Istanbul Olympiad (Women) | A30 English, Symmetrical |
| 256. M Fierro vs N Ziaziulkina |
| 1-0 | 17 | 2012 | Istanbul Olympiad (Women) | A15 English |
| 257. S Petrenko vs M Fierro |
| 1-0 | 48 | 2012 | Istanbul Olympiad (Women) | B07 Pirc |
| 258. K Ozturk vs M Fierro |
| 0-1 | 153 | 2012 | Istanbul Olympiad (Women) | E75 King's Indian, Averbakh, Main line |
| 259. M Fierro vs E Kulovana |
| ½-½ | 58 | 2012 | Istanbul Olympiad (Women) | A09 Reti Opening |
| 260. M Fierro vs A Corke |
| ½-½ | 39 | 2012 | Istanbul Olympiad (Women) | A15 English |
| 261. M Greeff vs M Fierro |
| 0-1 | 98 | 2012 | Istanbul Olympiad (Women) | B06 Robatsch |
| 262. M Fierro vs B Franciskovic |
| 1-0 | 95 | 2012 | Istanbul Olympiad (Women) | A30 English, Symmetrical |
| 263. C Lujan vs M Fierro |
| ½-½ | 31 | 2012 | Istanbul Olympiad (Women) | B36 Sicilian, Accelerated Fianchetto |
| 264. M Lazic vs M Fierro |
| 1-0 | 34 | 2013 | 16th Padova Open A | B01 Scandinavian |
| 265. M Fierro vs V Gunina |
| 0-1 | 30 | 2016 | Baku Olympiad (Women) | A30 English, Symmetrical |
| 266. M Atikankhotchasee vs M Fierro |
| 0-1 | 44 | 2016 | Baku Olympiad (Women) | B06 Robatsch |
| 267. M Fierro vs R Li |
| 1-0 | 46 | 2016 | Baku Olympiad (Women) | A16 English |
| 268. M Fierro vs G Vargas |
| ½-½ | 34 | 2016 | Baku Olympiad (Women) | A13 English |
| 269. M Arribas vs M Fierro |
| ½-½ | 29 | 2016 | Baku Olympiad (Women) | B31 Sicilian, Rossolimo Variation |
| 270. A Stefanova vs M Fierro |
| 1-0 | 38 | 2016 | Baku Olympiad (Women) | A49 King's Indian, Fianchetto without c4 |
| 271. M Fierro vs A Samaganova |
 | 1-0 | 40 | 2016 | Baku Olympiad (Women) | A36 English |
| 272. Q Guo vs M Fierro |
| ½-½ | 63 | 2017 | World Rapid Championship (Women) | E94 King's Indian, Orthodox |
| 273. M Fierro vs N Batsiashvili |
| 1-0 | 74 | 2017 | World Rapid Championship (Women) | A13 English |
| 274. Y Shen vs M Fierro |
| ½-½ | 69 | 2017 | World Rapid Championship (Women) | B08 Pirc, Classical |
| 275. M Fierro vs D Voit |
| 0-1 | 33 | 2017 | World Rapid Championship (Women) | A36 English |
Kibitzing
