Ostalowski, Maciej
Current rating: 1651
Record: 30-17-2 (GP) / 1-6-1 (professional)
| Grand Prix Prague 2017 (AER limited) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Thomas, Adam (1593) | Lost 0-2 | -191626 |
| 2sealed | 617 | Storch, Florian (1761) | Won 2-0 | +201646 |
| 3sealed | 633 | Berkemeier, Christian (1704) | Lost 1-2 | -171629 |
| 4sealed | 811 | Gross, Moritz (1575) | Won 2-1 | +171646 |
| 5sealed | 645 | Sander, Simon (1485) | Won 2-0 | +151661 |
| 6sealed | 314 | Baris, Dennis (1467) | Lost 1-2 | -211640 |
| 7sealed | 616 | Bantsevich, Hleb (1490) | Won 2-1 | +151655 |
| 8sealed | 383 | Hessens, Oliver (1546) | Won 2-0 | +161671 |
| 9sealed | 385 | Dumke, Fabian (1540) | Lost 0-1 | -201651 |
| top | average opponent: 1573record: 5-4 | new rating: 1651 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1647 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 254 | Fajkus, Adam (1632) | Lost 1-2 | -181629 |
| 2standard | 340 | Strok, Vitali (1513) | Draw 1-1 | -21627 |
| 3standard | 468 | Masin, Nikolas (1482) | Won 2-0 | +151642 |
| 4standard | 519 | Lipko, Irek (1463) | Won 2-1 | +151657 |
| 5standard | 278 | Blokhin, Dmitry (1555) | Lost 0-2 | -201637 |
| 6standard | 371 | Krolik, Pawel (1507) | Draw 1-1 | -21635 |
| 7standard | 411 | Schwarz, Christian (1459) | Lost 1-2 | -221613 |
| 8standard | 402 | Bedkowska, Kaja (1484) | Won 2-1 | +161629 |
| 9standard | 334 | Zadrozny, Dariusz (1499) | Won 2-1 | +161645 |
| top | average opponent: 1510record: 4-3-2 | new rating: 1645 | ||
| Pro Tour Eldritch Moon (EMN standard) | starting rating: 1717 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 84 | Ramboa, Thierry (2118) | Won 2-0 | +251742 |
| 2draft | 141 | Dickmann, Patrick (1928) | Lost 0-2 | -151727 |
| 3draft | 108 | Birrell, Ian (1690) | Lost 0-2 | -181709 |
| 4standard | 85 | Jensen, William (1970) | Lost 0-2 | -141695 |
| 5standard | 123 | Pizzi, William (1698) | Draw 1-1 | 01695 |
| 6standard | 124 | Van Cleave, Trey (1828) | Lost 0-2 | -151680 |
| 7standard | 133 | Brown, Ethan (1662) | Lost 0-2 | -191661 |
| 8standard | 126 | Hron, Mike (1855) | Lost 1-2 | -141647 |
| top | average opponent: 1844record: 1-6-1 | new rating: 1647 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 132 | Parkins, Tyler (1572) | Won 2-1 | +181568 |
| 2sealed | 75 | Horvath, Elliott (1661) | Lost 1-2 | -161552 |
| 3sealed | 379 | Kassiou, Elias (1446) | Won 2-0 | +161568 |
| 4sealed | 305 | Harris, Brett (1587) | Won 2-0 | +181586 |
| 5sealed | 191 | Bandas, Jim (1769) | Lost 0-2 | -141572 |
| 6sealed | 190 | Tung, Jimmy (1500) | Won 2-0 | +161588 |
| 7sealed | 198 | Fujimoto, Takashi (1495) | Won 2-0 | +171605 |
| 8sealed | 154 | Meredith, Damon (1567) | Lost 1-2 | -191586 |
| 9sealed | 138 | Versluis, Rob (1576) | Won 2-1 | +181604 |
| 10draft | 63 | Moore, Henry (1752) | Won 2-0 | +211625 |
| 11draft | 73 | Larsen, Christoffer (1968) | Won 2-1 | +241649 |
| 12draft | 38 | Hermann, Paul (1580) | Won 2-0 | +161665 |
| 13draft | 14 | Houllis, Kurt (1612) | Won 2-0 | +171682 |
| 14draft | 43 | Zhou, Mark (1592) | Won 2-1 | +171699 |
| 15draft | 39 | Cusack, Benedict (1719) | Won 2-1 | +181717 |
| top | average opponent: 1627record: 12-3 | new rating: 1717 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Brzozowski, Adam (1500) | Lost 1-2 | -181486 |
| 2sealed | 237 | Sanchez Diaz, Ruben (1693) | Won 2-0 | +221508 |
| 3sealed | 376 | Zakiewicz, Marcin (1475) | Won 2-0 | +171525 |
| 4sealed | 239 | Czjkowski, Marcin (1519) | Won 2-0 | +181543 |
| 5sealed | 91 | Tetzlaff, Leonard (1675) | Won 2-1 | +211564 |
| 6sealed | 72 | Newman, Gerhard (1534) | Won 2-1 | +171581 |
| 7sealed | 49 | Steinaa, Peter (1852) | Lost 0-0 | -131568 |
| 8sealed | 144 | Makowski, Kamil (1565) | Lost 1-2 | -181550 |
| top | average opponent: 1602record: 5-3 | new rating: 1550 | ||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 199 | Zajac, Szymon (1530) | Lost 1-2 | -171483 |
| 3standard | 268 | Sobczak, Artur (1505) | Won 2-1 | +181501 |
| 4standard | 232 | Wojtasik, Albert (1500) | Won 2-0 | +181519 |
| 5standard | 187 | Zaporski, Grzegorz (1517) | Lost 1-2 | -181501 |
| 6standard | 227 | Jurmann, Aadi (1500) | Won 2-0 | +181519 |
| 7standard | 144 | Andersson, Eddie (1514) | Lost 0-2 | -181501 |
| 8standard | 204 | Patarin, Clement (1643) | Won 2-0 | +201521 |
| 9standard | 173 | Liebner, Jan (1575) | Lost 0-2 | -171504 |
| top | average opponent: 1535record: 4-4 | new rating: 1504 | ||