Sylvester, Sebastian
Current rating: 1483
Record: 16-18
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 492 | Tambor, Kuba (1538) | Lost 0-2 | -181502 |
| 2sealed | 513 | Zaremba, Michal (1483) | Lost 0-2 | -181484 |
| 3sealed | 834 | Wilson, Magnus (1476) | Won 2-1 | +181502 |
| 4sealed | 744 | Mougras, Panos (1482) | Won 2-0 | +171519 |
| 5sealed | 569 | Prenom, Benjamin (1505) | Lost 0-2 | -181501 |
| 6sealed | 594 | Fortrie, Johannes (1483) | Lost 0-2 | -181483 |
| top | average opponent: 1494record: 2-4 | new rating: 1483 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 263 | Ciesielka, Krzysztof (1468) | Won 2-0 | +171529 |
| 2sealed | 27 | Busi, Yanez (1531) | Won 2-0 | +181547 |
| 3sealed | 135 | Truong, Thuan (1482) | Won 2-1 | +171564 |
| 4sealed | 215 | Reitbauer, David (1788) | Lost 1-2 | -141550 |
| 5sealed | 137 | Kolba, Adrian (1537) | Lost 1-2 | -181532 |
| 6sealed | 372 | Lata, Yuri (1527) | Won 2-1 | +171549 |
| 7sealed | 118 | Rutar, Andrej (1911) | Lost 0-0 | -111538 |
| 8sealed | 141 | Makowski, Adam (1532) | Lost 0-2 | -181520 |
| top | average opponent: 1597record: 4-4 | new rating: 1520 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 205 | Podlaha, Martin (1538) | Lost 0-2 | -171476 |
| 2modern | 423 | Ofmanski, Michal (1482) | Lost 0-2 | -181458 |
| 3modern | 649 | Krzos, Arkadiusz (1464) | Won 2-1 | +181476 |
| 4modern | 606 | Krystyan, Adrian (1485) | Lost 1-2 | -171459 |
| 5modern | 607 | Rigo, Lubomir (1465) | Won 2-0 | +181477 |
| 6modern | 560 | Knoch, Franz (1444) | Won 2-1 | +171494 |
| 7modern | 407 | Grabowski, Andrzej (1511) | Won 2-0 | +181512 |
| 8modern | 354 | Wilmotte, Sebastien (1558) | Won 2-0 | +191531 |
| 9modern | 300 | Ockert, Eric (1446) | Lost 0-2 | -191512 |
| top | average opponent: 1488record: 5-4 | new rating: 1512 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 143 | Opata, Jan (1463) | Lost 1-2 | -191504 |
| 2sealed | 395 | Tichy, Martin (1460) | Won 2-1 | +171521 |
| 3sealed | 547 | Mazzurco, Carlo (1866) | Lost 1-2 | -121509 |
| 4sealed | 686 | Strakhov, Alexander (1544) | Won 2-0 | +191528 |
| 5sealed | 378 | Hodecek, Jiri (1499) | Lost 1-2 | -191509 |
| 6sealed | 489 | Michlits, Mario (1630) | Lost 0-2 | -161493 |
| top | average opponent: 1577record: 2-4 | new rating: 1493 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 187 | Hegmann, Thorsten (1522) | Lost 1-2 | -181482 |
| 2sealed | 317 | Schmidt, Jan Ulrich (1483) | Won 2-0 | +181500 |
| 3sealed | 242 | Jacob, Jennifer (1498) | Won 2-0 | +181518 |
| 4sealed | 235 | Callens, Jeroen (1582) | Won 2-0 | +201538 |
| 5sealed | 131 | Lutz, Patrick (1732) | Lost 0-2 | -151523 |
| top | average opponent: 1564record: 3-2 | new rating: 1523 | ||