Mantel, Edwin
Current rating: 1521
Record: 4-3-2
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 555 | Van Linden, Denis (1500) | Won 2-0 | +181518 |
| 2sealed | 511 | Cheung, Kim (1518) | Won 2-1 | +181536 |
| 3sealed | 455 | Verbeken, Dirk (1733) | Lost 0-2 | -141522 |
| 4sealed | 484 | Van Adrichem, Ruben (1521) | Won 2-0 | +181540 |
| 5sealed | 492 | Buttner, Kevin F (1538) | Draw 1-1 | -11539 |
| 6sealed | 489 | Van Putten, Ferry (1537) | Won 2-1 | +181557 |
| 7sealed | 456 | Kilappa, Vantte (1627) | Lost 1-2 | -161541 |
| 8sealed | 487 | Van Brandt, Dimitri (1550) | Lost 1-2 | -181523 |
| 9sealed | 483 | van Reijmersdal, Niels (1443) | Draw 1-1 | -21521 |
| average opponent: 1552record: 4-3-2 | new rating: 1521 | |||