Siska, Ivan
Current rating: 1632
| Grand Prix Ghent 2012 (legacy) | starting rating: 1638 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 67 | Drapala, Thomas (1784) | Won 2-0 | +211659 |
| 5legacy | 33 | Wagner, Florian (1522) | Won 2-0 | +161675 |
| 6legacy | 17 | Oliver, Carrie (1610) | Lost 0-2 | -201655 |
| 7legacy | 19 | Kronberger, Niklas (1625) | Lost 0-2 | -181637 |
| 8legacy | 72 | Bonneau, Alexandre (1543) | Lost 1-2 | -201617 |
| 9legacy | 113 | Dijk, Jannes (1467) | Won 2-0 | +151632 |
| top | average opponent: 1592record: 3-3 | new rating: 1632 | ||
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 652 | Amat, Daniel (1556) | Won 2-1 | +191542 |
| 5legacy | 643 | Krings, Stefan (1632) | Won 2-0 | +201562 |
| 6legacy | 623 | Loor, Steve (1598) | Won 2-1 | +181580 |
| 7legacy | 610 | Karlinski, Anton (1748) | Draw 1-1 | +31583 |
| 8legacy | 609 | Chamuesco, Javier (1636) | Draw 1-1 | +11584 |
| 9legacy | 625 | Ljungberg, William (1798) | Draw 1-1 | +41588 |
| 10legacy | 884 | Lemoine, Vincent (1994) | Won 2-0 | +251613 |
| 11legacy | 834 | Megias, Raul (1621) | Won 2-1 | +181631 |
| 12legacy | 839 | Vanden Berghe, Jan (1670) | Won 2-0 | +191650 |
| 13legacy | 820 | Mar, Tomas (1612) | Draw 1-1 | -11649 |
| 14legacy | 816 | Koestler, Jonas (1918) | Lost 0-0 | -131636 |
| 15legacy | 829 | Smirnov, Alexander (1613) | Won 2-1 | +181654 |
| 16legacy | 820 | Szegho, Dalibor (1808) | Lost 0-0 | -161638 |
| top | average opponent: 1708record: 7-2-4 | new rating: 1638 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 52 | Lorenz, Michael (1500) | Won 2-0 | +181518 |
| 2extended | 112 | Meyer, Stephan (1810) | Won 2-0 | +231541 |
| 3extended | 75 | Caputo, Antonio (1540) | Draw 1-1 | 01541 |
| 4extended | 77 | Borba, Rodrigo (1634) | Lost 0-2 | -161525 |
| 5extended | 131 | Prka, Domagoj (1488) | Lost 1-2 | -191506 |
| 6extended | 179 | Gateaud, Maxime (1528) | Won 2-1 | +191525 |
| 7extended | 127 | Schmalfeld, Thomas (1575) | Draw 1-1 | +11526 |
| 8extended | 127 | Godlewski, Jaroslaw (1516) | Won 2-0 | +171543 |
| 9extended | 94 | Jager, Matthias (1436) | Lost 0-2 | -201523 |
| top | average opponent: 1559record: 4-3-2 | new rating: 1523 | ||