Sobkowski, Zarek
Current rating: 1512
Record: 5-5
| Grand Prix Charlotte 2016 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 278 | Hallett, Eric (1500) | Won 2-1 | +181528 |
| 2modern | 160 | Lim, Alexander 288 (1500) | Won 2-0 | +171545 |
| 3modern | 99 | Kaiser, Taylor (1596) | Lost 1-2 | -171528 |
| 4modern | 577 | Flickinger, Eric (1632) | Lost 0-2 | -161512 |
| average opponent: 1557record: 2-2 | new rating: 1512 | |||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1542 | Murphy, Emily D (1500) | Won 2-0 | +181518 |
| 2modern | 1326 | Chencinski, Timothy (1505) | Won 2-0 | +181536 |
| 3modern | 1346 | Kucera, Christopher (1536) | Lost 0-2 | -181518 |
| 4modern | 1344 | Parker, Cory (1556) | Lost 0-2 | -181500 |
| 5modern | 1292 | Judge, Thomas (1610) | Won 2-1 | +201520 |
| 6modern | 1288 | Ayers, Daryl (1953) | Lost 1-2 | -101510 |
| average opponent: 1610record: 3-3 | new rating: 1510 | |||