Castro Saa, Sergio
Current rating: 1628
Record: 23-16
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 516 | Cofek, Vito (1499) | Won 2-1 | +161611 |
| 2sealed | 332 | Popielski, Michal (1710) | Lost 1-2 | -161595 |
| 3sealed | 386 | Osso, Alessandro (1535) | Lost 0-2 | -191576 |
| 4sealed | 393 | Mahdal, Radek (1482) | Won 2-0 | +161592 |
| 5sealed | 298 | Boelens, Jasper (1812) | Won 2-1 | +221614 |
| 6sealed | 151 | Yoda, Tima (1531) | Won 2-0 | +171631 |
| 7sealed | 233 | Petrik, Adam (1565) | Won 2-0 | +171648 |
| 8sealed | 319 | Amico, Alessandro (1565) | Lost 0-2 | -201628 |
| top | average opponent: 1587record: 5-3 | new rating: 1628 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 358 | Ahn, Ei Yong (1511) | Won 2-0 | +171569 |
| 3sealed | 242 | Jaccard, Yann-Guillaume (1700) | Lost 1-2 | -151554 |
| 4sealed | 361 | Pegeot, Guillaume (1525) | Won 2-0 | +171571 |
| 5sealed | 285 | Siegling, Andreas (1503) | Won 2-1 | +171588 |
| 6sealed | 143 | Uittenbogaard, Kenny (1703) | Lost 0-2 | -161572 |
| 7sealed | 180 | Kalberer, Simon (1410) | Won 2-0 | +151587 |
| 8sealed | 218 | Hauck, Christian (1848) | Won 2-1 | +231610 |
| 9sealed | 137 | Semkin, Alexander (1786) | Lost 0-2 | -151595 |
| 10draft | 124 | Katzschner, Moritz (1586) | Won 2-0 | +181613 |
| 11draft | 96 | Strickmann, Golo (1576) | Lost 0-2 | -191594 |
| 12draft | 150 | Phedotov, Artem (1563) | Won 2-1 | +181612 |
| 13draft | 27 | Volkers, Bernd (1681) | Lost 1-2 | -171595 |
| 14draft | 24 | Simonin, Romain (1616) | Won 2-0 | +181613 |
| 15draft | 25 | Blanc, Jean-Gabriel (1603) | Lost 1-2 | -181595 |
| top | average opponent: 1615record: 8-6 | new rating: 1595 | ||
| Grand Prix Santiago 2016 (KLD standard) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 176 | Palacios Maureira, Patricio (1480) | Won 2-0 | +171575 |
| 2standard | 162 | Sifuentes, Francisco (1662) | Lost 1-2 | -171558 |
| 3standard | 282 | Zavaleta, Sebastian (1509) | Lost 0-2 | -181540 |
| 4standard | 289 | Bentos, Rodrigo (1483) | Lost 0-2 | -201520 |
| 5standard | 326 | Massa, Enzo (1415) | Won 2-1 | +171537 |
| 6standard | 254 | Navarro, Diego (1423) | Won 2-0 | +151552 |
| 7standard | 206 | Moraes Santos, Lucas (1504) | Won 2-0 | +181570 |
| 8standard | 182 | Huerta Gonzalez, Miguel (1603) | Lost 0-0 | -181552 |
| top | average opponent: 1510record: 4-4 | new rating: 1552 | ||
| Grand Prix Santiago 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 202 | Vejar, Fernando (1500) | Won 2-0 | +181518 |
| 2modern | 12 | Figueroa, Jorge A (1518) | Won 2-0 | +181536 |
| 3modern | 127 | Gaete Quezada, Daniel (1502) | Lost 1-2 | -191517 |
| 4modern | 173 | Antonio Martins dos Santos, Jorge (1497) | Won 2-0 | +181535 |
| 5modern | 111 | Mora, Sebastian (1643) | Won 2-0 | +201555 |
| 6modern | 100 | Ortiz, Pablo (1504) | Lost 1-2 | -191536 |
| 7modern | 121 | Miller, Dylan (1687) | Won 2-1 | +211557 |
| 8modern | 51 | Martinez, Julian (1555) | Won 2-1 | +181575 |
| 9modern | 29 | Soto, Rodrigo (1657) | Lost 0-2 | -171558 |
| top | average opponent: 1563record: 6-3 | new rating: 1558 | ||