Masin, Ondrej
Current rating: 1520
Record: 3-2
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 510 | Antos, Jaroslav (1500) | Won 2-0 | +181518 |
| 2sealed | 514 | Heigerer, Stefan (1687) | Lost 0-2 | -151503 |
| 3sealed | 661 | Fiala, Vit (1539) | Won 2-1 | +191522 |
| 4sealed | 699 | Renko, Andrej (1441) | Won 2-0 | +161538 |
| 5sealed | 653 | Lefterov, Alexander (1546) | Lost 0-2 | -181520 |
| average opponent: 1543record: 3-2 | new rating: 1520 | |||