Lewinski, Bartosz
Current rating: 1588
Record: 13-10
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Butler, John (1442) | Won 2-1 | +151599 |
| 2sealed | 252 | Rosinski, Szymon (1522) | Won 2-1 | +171616 |
| 3sealed | 278 | Danz, Jonathan (1681) | Won 2-0 | +191635 |
| 4sealed | 111 | Gajewski, Michal (1919) | Lost 1-2 | -131622 |
| 5sealed | 328 | Obels, Andreas (1568) | Won 2-1 | +171639 |
| 6sealed | 144 | Aristov, Boris (1793) | Lost 0-2 | -151624 |
| 7sealed | 335 | Kaufmann, Michael (1567) | Lost 1-2 | -191605 |
| 8sealed | 311 | Mauri, Marco (1646) | Lost 1-2 | -171588 |
| average opponent: 1642record: 4-4 | new rating: 1588 | |||
| Grand Prix Prague 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 565 | Wenger, Marc (1456) | Won 2-1 | +171517 |
| 2sealed | 437 | Verheesen, Rene (1543) | Won 2-1 | +191536 |
| 3sealed | 170 | Kaczmarczyk, Radek (1651) | Won 2-1 | +201556 |
| 4sealed | 101 | Wagner, Sebastian (1545) | Won 2-1 | +181574 |
| 5sealed | 107 | Vignudelli, Mattia (1710) | Lost 0-2 | -161558 |
| 6sealed | 129 | Neirynck, Branco (1857) | Won 2-1 | +231581 |
| 7sealed | 93 | Norgaard, Lasse (1907) | Won 2-0 | +241605 |
| 8sealed | 71 | Snoha, Peter (1560) | Lost 1-2 | -191586 |
| 9sealed | 93 | Kecke, Paul (1498) | Lost 1-2 | -191567 |
| 10draft | 220 | Gotfredsen, Anders (1859) | Won 2-1 | +231590 |
| 11draft | 110 | Alkio, Anssi (1865) | Lost 0-2 | -131577 |
| 12draft | 214 | Pispa, Lauri (1742) | Lost 0-2 | -151562 |
| 13draft | 222 | Chiarucci, Matteo (1483) | Won 2-0 | +161578 |
| 14draft | 220 | Tharmaratnam, Samuel (1917) | Lost 0-2 | -121566 |
| 15draft | 102 | Chlebnican, Peter (1543) | Won 2-1 | +181584 |
| average opponent: 1676record: 9-6 | new rating: 1584 | |||