Niwinski, Willam
Current rating: 1529
Record: 9-8
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 36 | Capling, David (1500) | Won 1-0 | +181500 |
| 2standard | 36 | Kluska, Taylor (1647) | Won 2-0 | +211521 |
| 3standard | 36 | Ayers, Corey (1596) | Won 2-0 | +191540 |
| 4standard | 36 | Kihara, Atsuki (1814) | Lost 1-2 | -131527 |
| 5standard | 36 | Davidson, Raymond (1535) | Lost 1-2 | -181509 |
| 6standard | 36 | Li, Richard (1627) | Lost 1-2 | -161493 |
| 7standard | 36 | Haugaard, Chester (1497) | Won 2-1 | +181511 |
| 8standard | 36 | Weis, Kevin (1517) | Won 2-1 | +181529 |
| average opponent: 1591record: 5-3 | new rating: 1529 | |||
| Grand Prix Barcelona 2016 (SOI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 39 | Depickere, Wim (1599) | Lost 0-2 | -161484 |
| 2sealed | 558 | Nizon, Jerome (1533) | Lost 0-2 | -171467 |
| 3sealed | 973 | Juan Luis, Morillo Fernandez (1464) | Won 2-0 | +181485 |
| 4sealed | 893 | Munoz, Daniel (1449) | Won 2-1 | +171502 |
| 5sealed | 740 | Moreno Gonzalez, Adrian (1537) | Lost 0-2 | -171485 |
| 6sealed | 769 | Rios, Alvaro (1449) | Won 2-0 | +171502 |
| 7sealed | 547 | Pereira, Mario (1400) | Won 2-0 | +161518 |
| 8sealed | 377 | Tsaknias, Panagiotis (1486) | Lost 0-2 | -181500 |
| 9sealed | 533 | Turner Cabeza, Jack (1506) | Lost 0-2 | -181482 |
| average opponent: 1492record: 4-5 | new rating: 1482 | |||