Stojak, Bartlomiej
Current rating: 1489
Record: 5-6
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 97 | Strmcnik, Tomaz (1500) | Lost 0-2 | -181487 |
| 2standard | 464 | Kin, Jedrzej (1465) | Lost 1-2 | -181469 |
| 3standard | 703 | Hardin, Jeffrey (1560) | Won 2-0 | +191488 |
| 4standard | 524 | Graf, Martin (1479) | Won 2-1 | +181506 |
| 5standard | 434 | Oravec, Michal (1559) | Lost 0-2 | -171489 |
| average opponent: 1513record: 2-3 | new rating: 1489 | |||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 156 | Harrison, Henry (1500) | Lost 0-2 | -181482 |
| 2standard | 310 | Dabrowski, Tomasz (1466) | Lost 0-2 | -181464 |
| 3standard | 535 | Barrass, Sophie (1492) | Won 2-1 | +181482 |
| 4standard | 463 | Fleszar, Kacper (1482) | Won 2-0 | +181500 |
| 5standard | 377 | Sanchez Diaz, Ruben (1742) | Won 2-0 | +231523 |
| 6standard | 201 | Golab, Maciej (1558) | Lost 0-2 | -181505 |
| average opponent: 1540record: 3-3 | new rating: 1505 | |||