Mathwich, David
Current rating: 1450
Record: 3-6
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 20 | Schulz, Robert (1412) | Won 2-0 | +161516 |
| 2standard | 194 | Battistuzzi, Nicolo (1532) | Lost 0-2 | -171499 |
| 3standard | 476 | Angelopoulos, Marios (1692) | Lost 1-2 | -151484 |
| 4standard | 553 | Mohan, Zhou (1488) | Lost 1-2 | -181466 |
| 5standard | 555 | Pruhs, Nick (1464) | Won 2-1 | +181484 |
| 6standard | 461 | Simaitis, Arturas (1467) | Won 2-0 | +181502 |
| 7standard | 341 | Kosmacz, Bartosz (1581) | Lost 1-2 | -171485 |
| 8standard | 374 | Neubacher, Lauritz (1539) | Lost 1-2 | -171468 |
| 9standard | 372 | Lapusan, Paul (1464) | Lost 0-2 | -181450 |
| average opponent: 1515record: 3-6 | new rating: 1450 | |||