Ros, Jonathan
Current rating: 1484
Record: 3-4
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 438 | Ortmann, Bjoern (1468) | Lost 1-2 | -191481 |
| 2sealed | 616 | Frieben, Maximilian (1481) | Won 2-0 | +181499 |
| 3sealed | 514 | Thil, Stephane (1622) | Won 2-0 | +211520 |
| 4sealed | 514 | Vrijhof, Jan (1536) | Lost 0-2 | -181502 |
| 5sealed | 555 | Argel, Thomas (1499) | Lost 0-2 | -181484 |
| 6sealed | 581 | Cheung, Kim (1482) | Won 2-0 | +181502 |
| 7sealed | 536 | Pletzer-Zelgert, Jonathan (1502) | Lost 1-2 | -181484 |
| average opponent: 1513record: 3-4 | new rating: 1484 | |||