Gromada, Piotr
Current rating: 1505
Record: 8-8
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 222 | Ouzky, Karel (1500) | Won 2-0 | +171583 |
| 2standard | 117 | Paius, Mihai - Catalin (1515) | Lost 1-2 | -191564 |
| 3standard | 430 | Mochar, Gerrit (1569) | Lost 1-2 | -181546 |
| 4standard | 642 | Hajek, Michal (1495) | Lost 0-2 | -191527 |
| 5standard | 600 | Grudzinska, Karolina (1462) | Won 2-0 | +171544 |
| 6standard | 500 | Pohlmann, Susanne (1459) | Lost 1-2 | -201524 |
| 7standard | 490 | Straka, Martin (1465) | Lost 0-2 | -191505 |
| average opponent: 1495record: 2-5 | new rating: 1505 | |||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 51 | Potoczek, Wojciech (1516) | Lost 1-2 | -181482 |
| 2standard | 252 | Knape, Cornelia (1447) | Won 2-0 | +181500 |
| 3standard | 391 | Cerych, Ondrej (1570) | Won 2-0 | +191519 |
| 4standard | 206 | Berthet, Paul (1619) | Won 2-0 | +201539 |
| 5standard | 137 | Jezierski, Grzegorz (1774) | Won 2-0 | +221561 |
| 6standard | 166 | van der Linden, Leon (1519) | Won 2-1 | +171578 |
| 7standard | 94 | Dean, Paul (1706) | Lost 1-2 | -151563 |
| 8standard | 158 | de Jesus Freitas, Marcos Paulo (1715) | Lost 1-2 | -161547 |
| 9standard | 137 | Bogolyubov, Dmitry (1595) | Won 2-0 | +191566 |
| average opponent: 1607record: 6-3 | new rating: 1566 | |||