Sobczak, Artur
Current rating: 1501
Record: 6-7-2
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 39 | Stendel, Sonja (1593) | Draw 1-1 | +21450 |
| 4sealed | 205 | Mostek, Sten-Magnus (1859) | Lost 0-1 | -111439 |
| 5sealed | 352 | Sas, Ivar (1437) | Won 2-0 | +181457 |
| 6sealed | 237 | Hauser, Matthias (1612) | Draw 1-1 | +31460 |
| 7sealed | 342 | Tarajkowski, Karol (1572) | Won 2-0 | +201480 |
| 8sealed | 239 | Berkemeier, Christian (1630) | Won 2-0 | +211501 |
| average opponent: 1617record: 3-1-2 | new rating: 1501 | |||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 5 | Libkin, Eugen (1798) | Lost 0-2 | -131487 |
| 2standard | 266 | Diaz, Alberto (1454) | Won 2-1 | +181505 |
| 3standard | 268 | Ostalowski, Maciej (1483) | Lost 1-2 | -191486 |
| 4standard | 389 | Rohman, Nicklas (1386) | Won 2-0 | +161502 |
| 5standard | 402 | Jhavpeta, Michat (1501) | Won 2-1 | +181520 |
| 6standard | 208 | Matloka, Pawel (1518) | Lost 0-2 | -181502 |
| 7standard | 340 | Bjorgo Onarheim, Jarle (1504) | Lost 1-2 | -181484 |
| 8standard | 331 | Radecki, Michal (1499) | Lost 0-2 | -171467 |
| 9standard | 302 | Bocian, Lukasz (1406) | Lost 1-2 | -191448 |
| average opponent: 1505record: 3-6 | new rating: 1448 | |||