Osmialowski, Jacek
Current rating: 1564
Record: 18-16
| Regional Championships Lille 2023 (pioneer) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 242 | Garcia Ballesteros, Mariluz (1503) | Lost 0-2 | -181472 |
| 2pioneer | 228 | Orra, Roger (1483) | Won 2-1 | +181490 |
| 3pioneer | 137 | Martinez-Cedillo Abajo, Guillermo (1496) | Lost 0-2 | -181472 |
| 4pioneer | 246 | Bittner, Paul (1576) | Won 2-1 | +201492 |
| 5pioneer | 150 | Gunay, Ilker (1436) | Won 2-1 | +171509 |
| 6pioneer | 110 | Borgel, Nicolas (1679) | Won 2-0 | +211530 |
| 7pioneer | 65 | van der Poel, Damian (1539) | Won 2-1 | +191549 |
| 8pioneer | 53 | Kundegraber, Michael (1804) | Won 2-0 | +221571 |
| 9pioneer | 31 | Tehrani, Etienne (1771) | Lost 1-2 | -141557 |
| 10pioneer | 43 | Titov, Egor (1574) | Lost 1-2 | -181539 |
| 11pioneer | 64 | Laiti, Topi (1555) | Won 2-1 | +181557 |
| 12pioneer | 66 | Casas, Emilio (1531) | Won 2-0 | +181575 |
| 13pioneer | 32 | Dias, Ricardo (1739) | Lost 0-2 | -151560 |
| 14pioneer | 46 | Duris, Peter (1603) | Lost 0-2 | -171543 |
| 15pioneer | 66 | Cicchini, Franco (1720) | Won 2-0 | +211564 |
| top | average opponent: 1601record: 9-6 | new rating: 1564 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 22 | Ruesink, Tim (1464) | Won 2-0 | +171521 |
| 3standard | 59 | De Marelle, Anthony (1574) | Won 2-0 | +191540 |
| 4standard | 106 | Orgera, Andrea (1500) | Lost 0-1 | -191521 |
| 5standard | 64 | Csaba, Denes (1471) | Lost 0-2 | -181503 |
| 6standard | 168 | Stone, Dennis (1807) | Lost 1-2 | -131490 |
| top | average opponent: 1563record: 2-3 | new rating: 1490 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 565 | Smith, Chris [IRL] (1423) | Won 2-0 | +161557 |
| 5sealed | 520 | Posolda, Ondrej (1679) | Lost 1-2 | -161541 |
| 6sealed | 565 | Fuchs, Christian (1362) | Lost 0-2 | -211520 |
| 7sealed | 661 | Bednar, Matej (1609) | Won 2-0 | +201540 |
| 8sealed | 556 | Gallner, Bernd (1554) | Lost 0-2 | -181522 |
| 9sealed | 593 | Jablonski, Tomasz (1525) | Lost 1-2 | -181504 |
| top | average opponent: 1526record: 2-4 | new rating: 1504 | ||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 548 | Jabs, Slawomir (1563) | Lost 0-2 | -171483 |
| 3standard | 593 | Max, Wiesinger (1500) | Won 2-0 | +181501 |
| 4standard | 591 | Kusina, Kajetan (1520) | Won 2-1 | +191520 |
| 5standard | 583 | Szczepkowski, Michal (1537) | Won 2-1 | +181538 |
| 6standard | 542 | Benedikt, Stefan (1625) | Lost 1-2 | -161522 |
| 7standard | 590 | Chrzanowski, Bartek (1539) | Won 2-0 | +181540 |
| 8standard | 532 | Greiers, Maris (1589) | Lost 1-2 | -171523 |
| 9standard | 565 | Gargulak, Daniel (1538) | Won 2-1 | +181541 |
| top | average opponent: 1551record: 5-3 | new rating: 1541 | ||