Hamm, Peter
Current rating: 1398
Record: 2-9
| Grand Prix Bologna 2019 (legacy) | starting rating: 1425 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 56 | De Michele, Tommaso (1546) | Lost 1-2 | -161409 |
| 2legacy | 651 | Vila Boix, Albert (1493) | Lost 0-2 | -171392 |
| 3legacy | 677 | Fiscale, Stefano (1467) | Won 2-0 | +201412 |
| 4legacy | 551 | Polak, Emil (1460) | Lost 0-2 | -171395 |
| 5legacy | 614 | Regis, Giulio (1523) | Lost 0-2 | -161379 |
| 6legacy | 594 | Puglisi, Gianluca (1448) | Won 2-0 | +191398 |
| average opponent: 1490record: 2-4 | new rating: 1398 | |||
| Grand Prix Lille 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 345 | Yahiaoui, Leny (1679) | Lost 1-2 | -151485 |
| 4modern | 325 | Cunderlik, Tomas (1506) | Lost 0-2 | -171468 |
| 5modern | 456 | Dosimont, Amand (1840) | Lost 0-2 | -121456 |
| 6modern | 730 | Habert, Alexandre (1692) | Lost 1-2 | -141442 |
| 7modern | 697 | Ledent, Kevin (1463) | Lost 0-2 | -171425 |
| average opponent: 1636record: 0-5 | new rating: 1425 | |||