del Fierro, Gonzalo
Current rating: 1614
Record: 37-25 (GP) / 15-22-2 (professional)
| Grand Prix Santiago 2017 (AKH standard) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 74 | Yacksic Carrasco, Fernando (1540) | Won 2-1 | +161651 |
| 2standard | 66 | Velazquez, Andres (1501) | Lost 1-2 | -211630 |
| 3standard | 202 | Morales, Ricardo (1380) | Lost 0-2 | -221608 |
| 4standard | 272 | Lopez, Jose Luis (1546) | Won 2-1 | +171625 |
| 5standard | 246 | Pizarro, Ivan (1503) | Lost 0-2 | -211604 |
| 6standard | 246 | Villa, Juan (1418) | Won 2-1 | +151619 |
| 7standard | 237 | Flores Rojas, Jose (1470) | Won 2-1 | +151634 |
| 8standard | 148 | Silva Silva, Jorge (1484) | Lost 1-2 | -201614 |
| top | average opponent: 1480record: 4-4 | new rating: 1614 | ||
| Grand Prix Santiago 2015 (ORI limited) | starting rating: 1700 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 120 | Reyes, Eduardo (1500) | Lost 1-2 | -221678 |
| 2sealed | 202 | Maldonado, Nicolas (1447) | Lost 0-2 | -221656 |
| 3sealed | 373 | Leiva, Felipe (1464) | Lost 0-2 | -211635 |
| top | average opponent: 1470record: 0-3 | new rating: 1635 | ||
| Grand Prix Santiago 2013 (THS standard) | starting rating: 1676 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 3 | Zagalsky, Alejo (1440) | Won 2-1 | +141690 |
| 2modern | 101 | MARQUEZ, MARCOS (1500) | Lost 0-2 | -211669 |
| 3modern | 292 | Mendez Leal, Carlos Rodolfo (1503) | Won 2-1 | +151684 |
| 4modern | 121 | Yanez, Alexi (1489) | Won 2-1 | +141698 |
| 5modern | 106 | Rodriguez, Axel Arian (1580) | Won 2-1 | +161714 |
| 6modern | 94 | Sanchez, Ignacio E (1473) | Won 2-1 | +141728 |
| 7modern | 184 | George C., (1539) | Won 2-1 | +141742 |
| 8modern | 102 | Martinez, Felipe (1560) | Lost 0-2 | -211721 |
| 9modern | 34 | Valderrama, Conrado (1558) | Lost 1-2 | -211700 |
| top | average opponent: 1516record: 6-3 | new rating: 1700 | ||
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1639 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 72 | Brettas, Marcelo (1500) | Won 2-1 | +161655 |
| 2standard | 60 | Nunez, Sebastian (1527) | Won 2-1 | +151670 |
| 3standard | 41 | De Nicola, Nicolas (1620) | Lost 0-2 | -191651 |
| 4standard | 108 | Rizzo, Jonathan (1704) | Lost 1-2 | -171634 |
| 5standard | 220 | Ferreira da Silva, And (1507) | Won 2-0 | +161650 |
| 6standard | 134 | Caggiano, Joao Ricardo (1468) | Won 2-1 | +151665 |
| 7standard | 79 | Philip, Nigel (1521) | Won 2-0 | +151680 |
| 8standard | 77 | Fernandes Lelis, Joao (1567) | Won 2-0 | +161696 |
| 9standard | 38 | Fagundes, Josejane (1593) | Lost 0-2 | -201676 |
| top | average opponent: 1556record: 6-3 | new rating: 1676 | ||
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 50 | Tortoza, Charli (1518) | Lost 1-2 | -201615 |
| 3sealed | 227 | LUIZ PACHECO, LEANDRO (1499) | Lost 1-2 | -201595 |
| 4sealed | 261 | Borges, Marcelo S (1482) | Won 2-1 | +161611 |
| 5sealed | 182 | Giglio Mayol, Jose Miguel (1504) | Won 2-0 | +161627 |
| 6sealed | 162 | Ancamil, Luis (1558) | Won 2-0 | +161643 |
| 7sealed | 124 | Rodriguez Santos, Henrique V (1536) | Won 2-0 | +161659 |
| 8sealed | 41 | Kai Mota, Paulo Ricardo D (1534) | Lost 1-2 | -201639 |
| top | average opponent: 1519record: 4-3 | new rating: 1639 | ||
| Pro Tour Dark Ascension (DKA standard) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 11 | Phillips, Cedric (1702) | Won 2-0 | +201647 |
| 2standard | 57 | Rankin, Mark (1520) | Won 2-0 | +151662 |
| 3standard | 21 | Jurkovic, Robert (1895) | Lost 1-2 | -131649 |
| 4standard | 62 | Schneider, Brian (1602) | Lost 0-2 | -191630 |
| 5standard | 142 | Musser, Dan (1613) | Won 2-1 | +171647 |
| 6draft | 175 | Bonaventura, Ciro (1762) | Lost 0-2 | -151632 |
| 7draft | 166 | Thomason, Timothy (1739) | Won 2-1 | +191651 |
| 8draft | 59 | Merriam, Ross (1722) | Lost 0-2 | -161635 |
| top | average opponent: 1694record: 4-4 | new rating: 1635 | ||
| Grand Prix Santiago 2011 (ISD limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 66 | Perez Lagos, Carlos (1518) | Won 2-0 | +191472 |
| 3sealed | 75 | Videla, Cristian (1536) | Won 2-1 | +191491 |
| 4sealed | 75 | de Jesus Freitas, Marcos Paulo (1545) | Won 2-0 | +191510 |
| 5sealed | 38 | Ruz, Walter (1553) | Won 2-1 | +191529 |
| 6sealed | 1 | Nakamura, Shuhei (2025) | Lost 0-2 | -91520 |
| 7sealed | 36 | Kendall, Ian (1669) | Won 2-1 | +201540 |
| 8sealed | 22 | Labruna, Leonardo (1682) | Won 2-0 | +211561 |
| 9sealed | 11 | Moreira da Boa Viagem, Gabriel (1618) | Won 2-0 | +191580 |
| 10draft | 18 | Turtenwald, Owen (1992) | Lost 0-2 | -111569 |
| 11draft | 28 | Roman, Patricio (1570) | Lost 0-2 | -181551 |
| 12draft | 37 | van Mourik, Alejandro (1525) | Won 2-0 | +181569 |
| 13draft | 12 | Fonseca, Guilherme (1610) | Won 2-0 | +181587 |
| 14draft | 21 | Real, Enzo (1575) | Won 2-1 | +181605 |
| 15draft | 12 | Buckley, Damian (1845) | Won 2-0 | +221627 |
| top | average opponent: 1662record: 11-3 | new rating: 1627 | ||
| 2010 World Championship (mixed) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 121 | Combrink, James (1500) | Won 2-0 | +181493 |
| 2standard | 1 | Wafo-Tapa, Guillaume (1943) | Lost 0-2 | -101483 |
| 3standard | 104 | Yukuhiro, Ken (1768) | Lost 0-2 | -131470 |
| 4standard | 144 | Ronchi, Federico (1633) | Won 2-1 | +211491 |
| 5standard | 70 | Yan, Kung L (1518) | Lost 1-2 | -181473 |
| 6standard | 113 | Rendon, Alejandro (1457) | Lost 0-2 | -181455 |
| 7draft | 122 | Ang, Jan Raymond (1492) | Lost 1-2 | -171438 |
| 8draft | 171 | Schroder, Ivan (1420) | Lost 1-2 | -191419 |
| 9draft | 170 | Luke, Bing (1458) | Won 2-1 | +191438 |
| 10draft | 144 | Sacher, AJ (1725) | Lost 0-2 | -131425 |
| 11draft | 123 | Ikeda, Tsuyoshi (1674) | Won 2-0 | +221447 |
| 12draft | 142 | Hsieh, Frank (1412) | Won 2-0 | +181465 |
| 13extended | 130 | van Mourik, Alejandro (1449) | Draw 1-1 | 01465 |
| 14extended | 122 | van Medevoort, Robert (1843) | Lost 1-2 | -121453 |
| top | average opponent: 1592record: 5-8-1 | new rating: 1453 | ||
| 2009 World Championship (mixed) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 35 | Wallin, Peter (1477) | Won 2-1 | +171532 |
| 2standard | 50 | Kerem, Hannes (1695) | Lost 1-2 | -151517 |
| 3standard | 105 | Barfod, Kenneth (1473) | Lost 0-2 | -191498 |
| 4standard | 126 | Nakano, Yoshitaka (1880) | Lost 1-2 | -111487 |
| 5standard | 145 | Vaananen, Aleksi (1596) | Lost 1-2 | -161471 |
| 6standard | 192 | Grove, Kevin (1846) | Lost 1-2 | -121459 |
| 7draft | 10 | Hurtado, Sebastian (1460) | Lost 0-2 | -181441 |
| 8draft | 152 | Vasui, Marian (1418) | Lost 1-2 | -181423 |
| 10draft | 38 | Nouzovsky, Zdenko (1465) | Won 2-0 | +191442 |
| 11draft | 94 | Telarov, Aleksa (1578) | Won 2-1 | +201462 |
| 12draft | 171 | Padilla Vargas, Cristian Alejandro (1546) | Lost 0-2 | -161446 |
| 13extended | 162 | Wallin, Peter (1435) | Lost 0-2 | -191427 |
| 14extended | 161 | Carrillo Espinoza, Roman Sael (1445) | Draw 1-1 | +11428 |
| 15extended | 159 | Pricopoaea, Cosmin George (1432) | Won 2-0 | +181446 |
| 16extended | 149 | Kocsis, Gabor (1658) | Won 2-0 | +221468 |
| 17extended | 134 | Menten, Robbert (1692) | Won 2-0 | +221490 |
| 18extended | 123 | Huang, Hao-Shan (1650) | Lost 0-2 | -151475 |
| top | average opponent: 1573record: 6-10-1 | new rating: 1475 | ||
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 23 | Silva, Paulo (1570) | Won 2-0 | +191521 |
| 4standard | 39 | Camargo, Murilo (1554) | Won 2-0 | +191540 |
| 5standard | 19 | Giucci, Leonardo (1571) | Won 2-0 | +181558 |
| 6standard | 10 | Frias, Daniel (1619) | Lost 0-0 | -161542 |
| 7standard | 36 | Galimbertti, Victor (1674) | Lost 1-2 | -161526 |
| 8standard | 48 | Vidugiris, Gaudenis (1903) | Lost 1-2 | -111515 |
| top | average opponent: 1649record: 3-3 | new rating: 1515 | ||
| Grand Prix Buenos Aires 2008 (SHM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 6 | Barcelos, Hederson (1500) | Lost 1-2 | -181482 |
| 4standard | 101 | LIBERA, JUAN MANUEL (1518) | Won 2-0 | +191501 |
| 5standard | 46 | Ribeiro de Freitas, Iury (1517) | Lost 1-2 | -181483 |
| 6standard | 149 | Sagula, Cristian (1519) | Won 2-0 | +191502 |
| 7standard | 116 | GOROSITO, LEONARDO (1535) | Won 2-0 | +181520 |
| 8standard | 77 | Larrosa, Joaquin (1511) | Lost 0-2 | -181502 |
| top | average opponent: 1517record: 3-3 | new rating: 1502 | ||