Vos, Marnix
Current rating: 1518
Record: 4-3
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 581 | Patelski, Bram (1500) | Lost 0-2 | -181482 |
| 2sealed | 660 | Roos, Maarten (1577) | Won 2-0 | +201502 |
| 3sealed | 525 | Rodrigues, Fabio (1422) | Won 2-1 | +161518 |
| 4sealed | 490 | McGovern, Mark (1562) | Won 2-0 | +191537 |
| 5sealed | 452 | Cnossen, Anne (1538) | Lost 1-2 | -181519 |
| 6sealed | 556 | Hromadka, Petr (1463) | Won 2-1 | +171536 |
| 7sealed | 469 | Cattrysse, Sabbe (1554) | Lost 0-2 | -181518 |
| average opponent: 1516record: 4-3 | new rating: 1518 | |||