Sobon, Konrad
Current rating: 1397
Record: 3-9
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 54 | Nicholson, Jared (1500) | Lost 0-2 | -171411 |
| 2sealed | 234 | Brierley, Ryan (1444) | Lost 0-2 | -181393 |
| 3sealed | 279 | Weidemd, Duco (1463) | Won 2-0 | +201413 |
| 4sealed | 332 | Rabionet Janssen, Raul (1530) | Lost 0-2 | -161397 |
| average opponent: 1484record: 1-3 | new rating: 1397 | |||
| Grand Prix Cardiff 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 91 | Van der Auwera, Bert (1612) | Won 2-1 | +201520 |
| 2sealed | 50 | Lawrence, Martin (1424) | Lost 0-0 | -201500 |
| 3sealed | 73 | Johnson, Tom (1588) | Lost 0-2 | -161484 |
| 4sealed | 126 | Whitelaw, David (1481) | Lost 0-2 | -181466 |
| 5sealed | 148 | Abrahams, Richard J (1463) | Won 2-0 | +181484 |
| 6sealed | 110 | Schroeyers, Jurgen (1357) | Lost 0-2 | -211463 |
| 7sealed | 107 | Paschali, Chris (1466) | Lost 0-2 | -171446 |
| 8sealed | 95 | Morris, Christopher [WAL] (1447) | Lost 1-2 | -181428 |
| average opponent: 1480record: 2-6 | new rating: 1428 | |||