Sierra, Jorge
Current rating: 1641
Record: 12-6 (GP) / 9-9 (professional)
| Grand Prix Buenos Aires 2008 (SHM standard) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 61 | Bertella, Juan Cruz (1517) | Lost 0-2 | -191578 |
| 3standard | 208 | Venini, Ignacio (1500) | Won 2-0 | +161594 |
| 4standard | 158 | Meili, Leandro (1521) | Lost 1-2 | -191575 |
| 5standard | 171 | Gentile, Emmanuel E (1499) | Won 2-0 | +161591 |
| 6standard | 161 | Avelino, Ronaldo (1518) | Won 2-1 | +171608 |
| 7standard | 114 | Betschart, Mauro (1529) | Won 2-1 | +171625 |
| 8standard | 49 | HERMIDA, HERNAN (1552) | Won 2-1 | +161641 |
| top | average opponent: 1519record: 5-2 | new rating: 1641 | ||
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 1 | Araujo Vianna Costa, Paulo (1518) | Won 2-1 | +181564 |
| 3sealed | 4 | Uehara, Pedro Henrique (1535) | Won 2-0 | +171581 |
| 4sealed | 11 | Betschart, Alejandro (1457) | Won 2-0 | +161597 |
| 5sealed | 11 | Kina, Mauro (1664) | Lost 1-2 | -171580 |
| 6sealed | 16 | Villela, Artur (1603) | Won 2-0 | +191599 |
| 7sealed | 22 | Gouvea de Oliveira, Adilson (1560) | ID | 01599 |
| 8rochester | 12 | Motta, Pedro (1677) | Lost 0-2 | -171582 |
| 9rochester | 4 | Rollwagen, Diogo (1503) | Won 2-1 | +171599 |
| 10rochester | 1 | Gouvea de Oliveira, Adilson (1563) | Lost 0-2 | -191580 |
| 11rochester | 22 | Saredo, Adrian (1540) | Won 2-1 | +171597 |
| 12rochester | 9 | Kohan, Nicolas (1619) | Won 2-0 | +191616 |
| 13rochester | 16 | Lima Cardoso, Filipe (1576) | Lost 0-2 | -191597 |
| top | average opponent: 1568record: 7-4-1 | new rating: 1597 | ||
| 2003 World Championship (mixed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 19 | Koobas, Lauri (1500) | Lost 0-2 | -181482 |
| 2standard | 40 | Betschart, Alejandro (1460) | Lost 0-2 | -181464 |
| 3standard | 148 | Djordjevic, Djordje (1474) | Won 2-1 | +181482 |
| 4standard | 145 | Idzikovsky, Eugene (1567) | Lost 0-2 | -171465 |
| 5standard | 126 | Hoelzl, Johannes (1666) | Won 2-1 | +221487 |
| 6standard | 89 | Lombardi, Marco (1681) | Won 2-1 | +211508 |
| 7rochester | 92 | Simm, Joosep (1508) | Won 2-0 | +181526 |
| 8rochester | 145 | Vollebregt, Joost (1844) | Won 2-1 | +241550 |
| 9rochester | 34 | Mello, Patrick (1867) | Lost 1-2 | -121538 |
| 10rochester | 62 | Seck, Ben (1788) | Lost 0-2 | -141524 |
| 11rochester | 89 | Ukkola, Joni (1655) | Lost 1-2 | -161508 |
| 12rochester | 85 | Lombardi, Marco (1672) | Won 2-1 | +211529 |
| 13extended | 108 | Erzen, Siyar (1532) | Won 2-1 | +181547 |
| 14extended | 71 | Klauser, Benedikt (1707) | Won 2-1 | +211568 |
| 15extended | 112 | Mack, Alex (1878) | Lost 0-2 | -121556 |
| 16extended | 100 | Jirapongtrakul, Boonchai (1602) | Lost 1-2 | -171539 |
| 17extended | 122 | Witt, Alexander (1832) | Won 2-1 | +231562 |
| 18extended | 61 | Baussaron, Pierre (1701) | Lost 0-2 | -161546 |
| top | average opponent: 1663record: 9-9 | new rating: 1546 | ||