Karalias, John
Current rating: 1513
Record: 8-8
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 279 | De Buyser, Ruben (1500) | Won 0-0 | +181501 |
| 2standard | 75 | Sekkoum, Sami (1559) | Lost 0-0 | -171484 |
| 3standard | 500 | Ricquier, Sebastien (1427) | Won 2-1 | +171501 |
| 4standard | 420 | Bangert, Jan (1678) | Lost 1-2 | -141487 |
| 5standard | 478 | Perbet, Guillaume (1846) | Won 2-1 | +241511 |
| 6standard | 411 | Vanek, Vojtech (1581) | Won 2-1 | +191530 |
| 7standard | 404 | Pilichowski, Karol (1549) | Won 2-1 | +181548 |
| 8standard | 130 | Bastogne, Jerome (1551) | Lost 1-2 | -181530 |
| 9standard | 213 | Yendall, David (1546) | Lost 0-2 | -171513 |
| average opponent: 1582record: 5-4 | new rating: 1513 | |||
| Grand Prix Paris 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 43 | Bianchi, Benoit (1500) | Won 2-1 | +181518 |
| 2standard | 237 | Latour, Benoit (1535) | Lost 0-2 | -181500 |
| 3standard | 409 | Baillet, Joris (1500) | Lost 1-2 | -181482 |
| 4standard | 522 | Rehak, Georges (1545) | Lost 1-2 | -171465 |
| 5standard | 570 | Degioanni, Christophe (1484) | Won 2-1 | +191484 |
| 6standard | 468 | Ledeme, Guillaume (1480) | Won 2-1 | +181502 |
| 7standard | 372 | Rodrigues, Miguel (1465) | Lost 1-2 | -191483 |
| average opponent: 1501record: 3-4 | new rating: 1483 | |||