Kowalski, Arthur
Current rating: 1465
Record: 3-5
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 474 | Nery Neto, Hernany (1488) | Lost 0-2 | -181482 |
| 2modern | 627 | Belumat, Henrique (1482) | Won 2-1 | +181500 |
| 3modern | 477 | Garcia, Gabriel [BRA] (1517) | Won 2-1 | +181518 |
| 4modern | 346 | Padilha Da Silva, Thiago (1557) | Lost 0-2 | -171501 |
| 5modern | 398 | Durante, Emerson (1499) | Won 2-1 | +181519 |
| 6modern | 290 | Saad Brito, Pedro Henrique (1521) | Lost 0-2 | -181501 |
| 7modern | 356 | Araujo, Guilherme (1488) | Lost 0-2 | -181483 |
| 8modern | 311 | Hadas Tasca, Ettore (1480) | Lost 0-2 | -181465 |
| average opponent: 1504record: 3-5 | new rating: 1465 | |||