Santos, Guillermo
Current rating: 1637
Record: 38-27-2
| Grand Prix Milan 2011 (ISD limited) | starting rating: 1615 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 684 | Andersson, Joakim (1596) | Lost 0-2 | -181597 |
| 2sealed | 854 | Hollmann, Marc (1668) | Won 2-1 | +191616 |
| 3sealed | 808 | Vitali, Roberto (1446) | Won 2-0 | +151631 |
| 4sealed | 753 | Fumagalli, Francesco (1503) | Won 2-1 | +151646 |
| 5sealed | 587 | Bisonii, Luca (1539) | Lost 0-2 | -191627 |
| 6sealed | 754 | Salvadori, Nathan (1521) | Won 2-0 | +161643 |
| 7sealed | 629 | Peltier, Charles (1373) | Won 2-0 | +131656 |
| 8sealed | 600 | Lerro, Lorenzo (1626) | Lost 0-2 | -191637 |
| top | average opponent: 1534record: 5-3 | new rating: 1637 | ||
| Grand Prix Madrid 2008 (EVE limited) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 212 | Chieregato, Emmanuel (1550) | Won 2-1 | +181605 |
| 2sealed | 2 | Aguera Salas, Sergio (1518) | Won 2-1 | +161621 |
| 3sealed | 68 | Englebert, Quentin (1507) | Won 2-0 | +161637 |
| 4sealed | 57 | Ramiao, Ricardo (1703) | Lost 0-2 | -171620 |
| 5sealed | 133 | Kvaloe, Tarjei (1608) | Lost 1-2 | -181602 |
| 6sealed | 172 | Penate, Roberto (1614) | Lost 0-2 | -181584 |
| 7sealed | 156 | Martin, Alain (1421) | Won 2-0 | +151599 |
| 8sealed | 105 | Villanueva Munoz, Jose (1475) | Won 2-0 | +161615 |
| top | average opponent: 1549record: 5-3 | new rating: 1615 | ||
| Grand Prix Barcelona 2006 (GPT limited) | starting rating: 1591 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 70 | Palomar, Ruben (1535) | Lost 0-2 | -191572 |
| 3sealed | 153 | Veron, Mathias (1775) | Lost 1-2 | -151557 |
| 4sealed | 224 | Silang, Elvis (1479) | Won 2-0 | +171574 |
| 5sealed | 149 | Moreira, Maximo (1565) | Won 2-0 | +181592 |
| 6sealed | 135 | Nystrom, Per (1499) | Lost 1-2 | -201572 |
| 7sealed | 135 | Garcia, Esteban (1470) | Won 2-0 | +161588 |
| 8sealed | 98 | Carbajo Lopez, Daniel (1521) | Won 2-0 | +171605 |
| 9sealed | 61 | Miori, Marina (1618) | Lost 0-2 | -181587 |
| top | average opponent: 1558record: 4-4 | new rating: 1587 | ||
| Grand Prix Hasselt 2006 (RAV limited) | starting rating: 1596 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 5 | von Beschwitz, Bastian (1568) | Lost 0-1 | -191577 |
| 3sealed | 125 | Sia, Benjamin (1502) | Lost 1-2 | -191558 |
| 4sealed | 210 | Pobis, Jakub (1599) | Won 2-0 | +191577 |
| 5sealed | 170 | Frencken, Steven (1467) | Won 2-0 | +161593 |
| 6sealed | 97 | Massicard, Yann (1608) | Won 2-0 | +181611 |
| 7sealed | 58 | Rotsaert, Jeremy (1536) | Lost 1-2 | -191592 |
| 8sealed | 89 | Kocsis, Gabor (1612) | Lost 0-2 | -181574 |
| 9sealed | 78 | Kneuper, Richard (1503) | Won 0-0 | +171591 |
| top | average opponent: 1549record: 4-4 | new rating: 1591 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 170 | Mayeur, Michael (1516) | Won 2-0 | +171618 |
| 3sealed | 87 | Hradil, Tomas (1530) | Won 2-1 | +161634 |
| 4sealed | 18 | Torng, Christophe (1669) | Lost 0-2 | -171617 |
| 5sealed | 60 | Warmenhoven, Ruud (1789) | Lost 0-2 | -151602 |
| 6sealed | 127 | Chongkam, Chanthy (1518) | Lost 1-2 | -201582 |
| 7sealed | 165 | Roth, Philippe (1503) | Won 2-0 | +171599 |
| 8sealed | 113 | Alink, Daniel (1515) | Lost 0-2 | -201579 |
| 9sealed | 98 | Fishman, Youv (1508) | Won 2-1 | +171596 |
| top | average opponent: 1569record: 4-4 | new rating: 1596 | ||
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1615 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Soria, Juan (1481) | Won 2-0 | +161631 |
| 2sealed | 136 | Petit, Xavier (1612) | Lost 0-2 | -191612 |
| 3sealed | 455 | Francisco, German (1540) | Won 2-1 | +171629 |
| 4sealed | 341 | Prior, Rui (1518) | Won 2-0 | +161645 |
| 5sealed | 196 | Mayor Redondo, Victor (1580) | Lost 0-2 | -191626 |
| 6sealed | 288 | Rodrigues, Fabio (1520) | Lost 1-2 | -201606 |
| 7sealed | 282 | Marques, Ramon (1500) | Draw 1-1 | -21604 |
| 8sealed | 217 | Castillo, Antonio (1499) | Won 2-1 | +161620 |
| 9sealed | 155 | Maldonado Prada, Cristian Emilio (1572) | Lost 0-2 | -191601 |
| top | average opponent: 1536record: 4-4-1 | new rating: 1601 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 343 | Volk, Jorg (1451) | Won 1-0 | +161570 |
| 2sealed | 50 | Meier, Klaus (1518) | Won 2-0 | +171587 |
| 3sealed | 29 | Seiwert, Robert (1506) | Lost 1-2 | -191568 |
| 4sealed | 219 | Mrankov Tosev, Ivan (1440) | Won 2-1 | +151583 |
| 5sealed | 128 | Amrhein, Roland (1548) | Draw 1-1 | 01583 |
| 6sealed | 151 | Barthold, Michael (1507) | Won 2-0 | +161599 |
| 7sealed | 92 | Siemes, Thomas (1554) | Lost 0-2 | -181581 |
| 8sealed | 129 | Pikos, Tomasz (1575) | Won 2-1 | +171598 |
| 9sealed | 89 | Roder, Dominik (1513) | Won 2-1 | +171615 |
| top | average opponent: 1513record: 6-2-1 | new rating: 1615 | ||
| Grand Prix Lyon 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 319 | Luciani, Fabrice (1463) | Won 2-0 | +171517 |
| 2sealed | 149 | Guillot, Elric (1527) | Lost 1-2 | -181499 |
| 3sealed | 198 | Albin, Sebastien (1500) | Won 2-0 | +191518 |
| 4sealed | 138 | Oulie, Pascal (1466) | Won 2-1 | +171535 |
| 5sealed | 92 | Comte, Florian (1610) | Lost 0-2 | -171518 |
| 6sealed | 139 | Bonnet, Jimmy (1519) | Won 2-1 | +181536 |
| 7sealed | 150 | Molard, Marc (1538) | Lost 0-2 | -181518 |
| 8sealed | 170 | Frecaut, Sebastien (1518) | Won 2-0 | +181536 |
| 9sealed | 105 | Lapalus, Remy (1540) | Won 2-1 | +181554 |
| top | average opponent: 1520record: 6-3 | new rating: 1554 | ||