Ofmanski, Piotr
Current rating: 1513
Record: 17-17
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 13 | Kovacs, Gabor (1393) | Won 2-1 | +161525 |
| 3standard | 123 | Ciotta, Andrea (1679) | Lost 0-2 | -151510 |
| 4standard | 324 | Okulaa, Krystian (1520) | Won 2-1 | +181528 |
| 5standard | 135 | Bux, Marcel (1578) | Won 2-0 | +191547 |
| 6standard | 153 | Sierk, Kolja (1463) | Lost 0-2 | -201527 |
| 7standard | 181 | Harezlak, Wiktor (1550) | Won 2-0 | +191546 |
| 8standard | 142 | Ciesielski, Kamil (1497) | Lost 0-2 | -191527 |
| 9standard | 224 | Gallinari, Samuele (1736) | Lost 0-2 | -141513 |
| top | average opponent: 1552record: 4-4 | new rating: 1513 | ||
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 201 | Wagner, Sebastian (1484) | Lost 1-2 | -181487 |
| 3standard | 418 | Mundel, Robert (1532) | Won 2-0 | +191506 |
| 4standard | 307 | Szucs, Gabor (1562) | Won 2-0 | +191525 |
| 5standard | 274 | Jusna, Richard (1542) | Lost 1-2 | -181507 |
| 6standard | 320 | Glowalla, Jonas (1653) | Won 2-0 | +211528 |
| 7standard | 313 | Surab, Patrik (1577) | Lost 1-2 | -171511 |
| 8standard | 252 | Faktor, Tomas (1518) | Won 2-0 | +181529 |
| 9standard | 218 | Gerth, Christopher (1443) | Lost 0-2 | -201509 |
| top | average opponent: 1539record: 4-4 | new rating: 1509 | ||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 19 | Grindborg, Bjorn (1667) | Won 2-0 | +211539 |
| 2standard | 228 | Karasek, Lukas (1513) | Won 2-1 | +181557 |
| 3standard | 280 | Nacsa, Zsofia (1532) | Lost 1-2 | -191538 |
| 4standard | 250 | Hocquemiller, Arnaud (1799) | Lost 0-2 | -131525 |
| 5standard | 435 | Bylica, Lukasz (1561) | Lost 0-2 | -171508 |
| 6standard | 420 | Karlin, Jaka (1520) | Won 2-0 | +181526 |
| 7standard | 59 | Krysinski, Milos (1470) | Lost 1-2 | -191507 |
| 8standard | 314 | LI, MIN (1486) | Won 2-0 | +171524 |
| 9standard | 241 | Csente, David (1469) | Lost 1-2 | -191505 |
| top | average opponent: 1557record: 4-5 | new rating: 1505 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 36 | Cermy, Denis (1500) | Lost 0-2 | -181482 |
| 2modern | 457 | Agrati, Manuel (1425) | Won 2-0 | +171499 |
| 3modern | 400 | Krystyan, Adrian (1503) | Won 2-1 | +181517 |
| 4modern | 369 | Cavalic, Nelvis (1518) | Won 2-0 | +181535 |
| 5modern | 119 | Maussner, Thomas (1481) | Won 2-1 | +171552 |
| 6modern | 186 | Prlic, Stefan (1557) | Lost 1-2 | -181534 |
| 7modern | 147 | Bojtar, Gyula (1552) | Won 2-0 | +181552 |
| 8modern | 91 | Rosenkranz, Ondrej (1655) | Lost 1-2 | -161536 |
| 9modern | 254 | Keller, Stephan (1545) | Lost 0-2 | -181518 |
| top | average opponent: 1526record: 5-4 | new rating: 1518 | ||