Koranda, Tomas
Current rating: 1503
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 663 | Vorozbjanskij, Jarosla (1500) | Won 2-0 | +191472 |
| 2sealed | 574 | Sormani, Reto (1457) | Lost 0-2 | -191453 |
| 3sealed | 705 | Bliznak, Jaromir (1499) | Won 2-0 | +191472 |
| 4sealed | 724 | Zorzi, Giulio (1681) | Won 2-0 | +221494 |
| 5sealed | 613 | Sulik, Pavel (1498) | Won 2-0 | +181512 |
| 6sealed | 529 | Orsini Jones, Matteo (1798) | Lost 1-2 | -131499 |
| 7sealed | 599 | Minghetti, Riccardo (1621) | Lost 1-2 | -161483 |
| 8sealed | 651 | Cammilluzzi, Marco (1599) | Won 2-0 | +201503 |
| top | average opponent: 1582record: 5-3 | new rating: 1503 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 168 | Strmac, Gordan (1500) | Won 2-0 | +191480 |
| 2extended | 9 | Schade, Martin (1518) | Lost 1-2 | -171463 |
| 3extended | 184 | Leitgeb, Petr (1583) | Lost 1-2 | -161447 |
| 4extended | 202 | Ghafouri, Fabian (1466) | Won 2-1 | +181465 |
| 5extended | 185 | Dorle, Anthony (1624) | Won 2-1 | +211486 |
| 6extended | 130 | Pasztor, Balazs (1519) | Won 2-1 | +191505 |
| 7extended | 93 | Muller, Isaies (1577) | Lost 1-2 | -171488 |
| 8extended | 107 | Vosahlik, Petr (1517) | Lost 1-2 | -171471 |
| 9extended | 119 | Sattler, Markus (1481) | Lost 0-2 | -181453 |
| top | average opponent: 1532record: 4-5 | new rating: 1453 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 285 | Morgenstern, Frank (1500) | Lost 1-2 | -181482 |
| 2sealed | 281 | Pannhorst, Lothar-Nils (1347) | Won 2-1 | +161498 |
| 3sealed | 191 | Milota, Martin (1486) | Lost 0-2 | -191479 |
| 4sealed | 348 | Smolik, Michal (1481) | Lost 0-2 | -181461 |
| top | average opponent: 1454record: 1-3 | new rating: 1461 | ||