Duckworth, Willem
Current rating: 1496
Record: 4-4
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 24 | Johnson, Steven (1365) | Lost 0-2 | -201480 |
| 2legacy | 243 | Pannese, Patrick (1456) | Lost 0-2 | -191461 |
| 3legacy | 422 | Pata, Brandon (1427) | Lost 1-2 | -181443 |
| 4legacy | 448 | Grant, Conor (1450) | Won 2-0 | +181461 |
| 5legacy | 400 | McCormick, Greg (1246) | Won 2-0 | +141475 |
| 6legacy | 317 | Salinas, Merced 5390 (1542) | Won 2-0 | +191494 |
| 7legacy | 245 | Thomas, Sterling (1468) | Won 2-1 | +181512 |
| 8legacy | 197 | Akpinar, Tim (1657) | Lost 0-2 | -161496 |
| average opponent: 1452record: 4-4 | new rating: 1496 | |||