Marchlewski, Jakub
Current rating: 1634
Record: 11-4-2
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 215 | Jezewski, Joshua (1581) | Draw 1-1 | 01569 |
| 2sealed | 403 | Zini, Matteo (1500) | Draw 1-1 | -11568 |
| 3sealed | 759 | Bravi, Gianluca (1458) | Won 2-1 | +161584 |
| 4sealed | 602 | Hakala, Tomi (1608) | Won 2-0 | +181602 |
| 5sealed | 411 | Peters, Micha (1478) | Won 2-0 | +161618 |
| 6sealed | 257 | Swanstrom, Cyle (1401) | Lost 1-2 | -221596 |
| 7sealed | 406 | Hess, Markus (1589) | Won 2-1 | +181614 |
| 8sealed | 280 | Blankevoort, Tijmen (1723) | Won 2-0 | +201634 |
| average opponent: 1542record: 5-1-2 | new rating: 1634 | |||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Marzano, Pierre (1621) | Lost 0-2 | -161484 |
| 2sealed | 341 | Miecznikowski, Jedrzej (1466) | Won 2-0 | +181502 |
| 3sealed | 345 | Khodorchenkov, Vladimi (1574) | Won 2-1 | +191521 |
| 4sealed | 186 | Gorokhovskyy, Kostyantyn (1651) | Won 2-1 | +211542 |
| 5sealed | 350 | Polok, Przemyslaw (1486) | Won 2-1 | +171559 |
| 6sealed | 71 | Strebejko, Albert (1524) | Lost 1-2 | -191540 |
| 7sealed | 148 | Johansson, Alexander (1538) | Won 0-0 | +181558 |
| 8sealed | 99 | Prosek, Dominik (1791) | Won 2-1 | +221580 |
| 9sealed | 191 | Karsten, Frank (1956) | Lost 1-2 | -111569 |
| average opponent: 1623record: 6-3 | new rating: 1569 | |||