Stubna, Roman
Current rating: 1470
Record: 4-6
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Kubiak, Pawel (1500) | Lost 1-2 | -171465 |
| 2sealed | 467 | Nygaard, Nikolas (1767) | Won 2-1 | +231488 |
| 3sealed | 379 | Brinkmann, Marc (1498) | Won 2-0 | +181506 |
| 4sealed | 331 | Dobrynin, Egor (1506) | Lost 1-2 | -181488 |
| 5sealed | 506 | Tosenko, Anna (1498) | Lost 0-2 | -181470 |
| average opponent: 1554record: 2-3 | new rating: 1470 | |||
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1103 | Blot, Emmanuel (1386) | Won 1-0 | +161516 |
| 2sealed | 1103 | Baldvinsson, Einar (1632) | Lost 0-2 | -161500 |
| 3sealed | 1178 | De Momi, Mathias (1546) | Lost 1-2 | -171483 |
| 4sealed | 1256 | Vidal, Brandon (1370) | Lost 1-2 | -201463 |
| 5sealed | 1264 | Forjan, Nicolas (1545) | Won 2-1 | +191482 |
| average opponent: 1496record: 2-3 | new rating: 1482 | |||