Marciniak, Jaroslaw
Current rating: 1478
Record: 18-21-2
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 93 | Pedrakowski, Tomasz (1848) | Lost 0-2 | -121474 |
| 3sealed | 667 | Krawiecki, Dominik (1519) | Won 2-0 | +191493 |
| 4sealed | 563 | Sulak, Andrew (1512) | Won 2-1 | +181511 |
| 5sealed | 316 | Velemets, Oleksii (1543) | Won 2-0 | +191530 |
| 6sealed | 74 | Otte, Julia (1560) | Lost 1-2 | -171513 |
| 7sealed | 384 | Walser, Rene (1548) | Lost 0-2 | -181495 |
| 8sealed | 388 | Anconelli, Simone (1521) | Lost 0-2 | -171478 |
| top | average opponent: 1579record: 3-4 | new rating: 1478 | ||
| Grand Prix Copenhagen 2018 (DOM standard) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 106 | Moller, Gunnar (1618) | Won 2-0 | +201517 |
| 3standard | 77 | Vatthauer, Hannes (1564) | Lost 0-2 | -171500 |
| 4standard | 201 | Proll, Markus (1462) | Lost 0-2 | -191481 |
| 5standard | 214 | Omdal, Lukas (1506) | Won 2-1 | +191500 |
| 6standard | 187 | Krejci, Radek (1434) | Won 2-1 | +171517 |
| 7standard | 97 | Berle, Kim (1628) | Lost 0-2 | -161501 |
| 8standard | 139 | Thiesen, Anders (1682) | Lost 1-2 | -151486 |
| top | average opponent: 1556record: 3-4 | new rating: 1486 | ||
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 131 | Qiu, Kangjing (1520) | Lost 0-2 | -181515 |
| 3standard | 495 | Strnad, Marek (1499) | Lost 0-2 | -181497 |
| 4standard | 461 | Whytock, Calum (1520) | Won 2-0 | +181515 |
| 5standard | 330 | Iliadis, Alexandros (1510) | Lost 1-2 | -181497 |
| top | average opponent: 1512record: 1-3 | new rating: 1497 | ||
| Grand Prix Prague 2017 (AER limited) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 26 | Brandt, Kenneth (1784) | Draw 1-1 | +41591 |
| 2sealed | 464 | Caffiaux, Benoit (1521) | Won 2-0 | +171608 |
| 3sealed | 446 | Wessman, Filip (1516) | Lost 0-2 | -201588 |
| 4sealed | 656 | Eifler, Fabian (1729) | Lost 1-2 | -151573 |
| 5sealed | 775 | Zorko, Robert (1485) | Lost 0-2 | -201553 |
| 6sealed | 796 | Dujic, Goran (1462) | Lost 0-2 | -201533 |
| top | average opponent: 1583record: 1-4-1 | new rating: 1533 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Loewecke, Malte (1465) | Won 2-1 | +161592 |
| 2standard | 185 | Koch, Dennis (1499) | Won 2-0 | +161608 |
| 3standard | 172 | Panchartek, Zbysek (1672) | Won 2-1 | +191627 |
| 4standard | 74 | Takahashi, Yuta (2102) | Won 2-1 | +261653 |
| 5standard | 8 | Lahonen, Leo (1700) | Lost 0-2 | -171636 |
| 6standard | 129 | Spoerk, Markus (1626) | Lost 1-2 | -181618 |
| 7standard | 148 | Lantto, Magnus (1928) | Lost 0-2 | -131605 |
| 8standard | 239 | Petrusic, Stjepko (1604) | Lost 0-2 | -181587 |
| top | average opponent: 1699record: 4-4 | new rating: 1587 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 676 | Wagner, Ann-Katrin (1467) | Draw 1-1 | -11499 |
| 2standard | 709 | Aelbrecht, Jimmy (1516) | Won 2-0 | +191518 |
| 3standard | 645 | Tollenaar, Xandor (1430) | Won 2-0 | +161534 |
| 4standard | 622 | Gerber, Timm (1624) | Won 2-1 | +201554 |
| 5standard | 556 | Hollos, Peter (1523) | Won 2-1 | +171571 |
| 6standard | 531 | Belov, Marat (1537) | Lost 0-2 | -181553 |
| 7standard | 576 | Ruel, Olivier (1847) | Lost 1-2 | -131540 |
| 8standard | 627 | van Netten, Ilja (1534) | Won 2-1 | +181558 |
| 9standard | 591 | Hawa, Nour (1562) | Won 2-0 | +181576 |
| top | average opponent: 1560record: 6-2-1 | new rating: 1576 | ||