Jurkowski, Jakub
Current rating: 1495
Record: 6-7-1
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 182 | Ulrich, Reto (1656) | Lost 1-2 | -141426 |
| 2sealed | 447 | Adam, Sven (1482) | Won 1-0 | +191445 |
| 3sealed | 726 | Kesminaite, Aiste (1343) | Won 2-0 | +161461 |
| 4sealed | 585 | Baldrati, Enrico (1662) | Won 2-0 | +211482 |
| 5sealed | 193 | Spyra, Tomasz (1511) | Won 2-0 | +191501 |
| 6sealed | 69 | Beavan, Andrew (1636) | Won 2-0 | +201521 |
| 7sealed | 68 | Kundegraber, Michael (2024) | Lost 1-2 | -91512 |
| 8sealed | 103 | Coates, Richard (1562) | Lost 0-2 | -171495 |
| average opponent: 1610record: 5-3 | new rating: 1495 | |||
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 44 | Roels, Markus (1430) | Lost 0-2 | -191481 |
| 2standard | 399 | Czuba, Kamil (1506) | Draw 1-1 | 01481 |
| 3standard | 528 | Kozaczko, Dominik (1372) | Lost 1-2 | -201461 |
| 4standard | 565 | Gadeyne, Kenneth (1254) | Lost 0-2 | -221439 |
| 5standard | 570 | Garcia Hernandez, Sonia (1453) | Won 2-0 | +191458 |
| 6standard | 520 | Blaszczyk, Przemyslaw (1461) | Lost 0-2 | -181440 |
| average opponent: 1413record: 1-4-1 | new rating: 1440 | |||