Tkacz, Mikolaj
Current rating: 1499
Record: 4-4
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 322 | Kettula, Joel (1498) | Won 2-0 | +181518 |
| 2sealed | 273 | Luhtala, Riia (1501) | Lost 0-2 | -181500 |
| 3sealed | 671 | Schlegel, Michael (1474) | Lost 1-2 | -191481 |
| 4sealed | 757 | Castillo Torrente, Ignacio (1491) | Won 2-0 | +181499 |
| 5sealed | 445 | Jachymowski, Jacek (1508) | Won 2-0 | +191518 |
| 6sealed | 314 | Mojik, Miroslav (1456) | Lost 1-2 | -201498 |
| 7sealed | 513 | Daunis, Aurore (1417) | Won 2-0 | +171515 |
| 8sealed | 332 | Pappas, Franck (1641) | Lost 1-2 | -161499 |
| average opponent: 1498record: 4-4 | new rating: 1499 | |||