Sielski, Yannick
Current rating: 1549
Record: 8-6
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 457 | Calder, Lewis (1500) | Won 0-0 | +171544 |
| 2standard | 400 | Jaworski, Dominik (1698) | Won 0-0 | +211565 |
| 3standard | 208 | Casper, Sven (1530) | Won 2-0 | +181583 |
| 4standard | 212 | Kaklauskas, Gabrielius (1492) | Won 2-1 | +161599 |
| 5standard | 99 | Andrieu, Thibault (1708) | Lost 0-2 | -161583 |
| 6standard | 159 | Szczotka, Kacper (1642) | Lost 0-2 | -171566 |
| 7standard | 251 | Drobner, Timo (1640) | Lost 1-2 | -171549 |
| average opponent: 1601record: 4-3 | new rating: 1549 | |||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 227 | Wageningen, Mathijs (1758) | Won 2-1 | +231523 |
| 2modern | 159 | Anteri, Fabrizio (1967) | Lost 1-2 | -111512 |
| 3modern | 557 | de Montlas, Florian (1449) | Lost 0-2 | -191493 |
| 4modern | 645 | De Hoon, Xanthias (1482) | Won 2-0 | +181511 |
| 5modern | 502 | Cory, Tomer (1501) | Won 2-1 | +181529 |
| 6modern | 270 | Huber, Felix-Juerg (1518) | Won 2-1 | +171546 |
| 7modern | 271 | Tomic, Vuk (1463) | Lost 1-2 | -191527 |
| average opponent: 1591record: 4-3 | new rating: 1527 | |||