Merdes, Christoph
Current rating: 1429
Record: 2-6
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 43 | Moser, Thorsten (1500) | Won 2-0 | +181518 |
| 2extended | 115 | Verhulst, Johan (1624) | Won 2-0 | +201538 |
| 3extended | 13 | Sormani, Reto (1518) | Lost 0-2 | -181520 |
| 4extended | 93 | Socha, Marek (1469) | Lost 0-0 | -191501 |
| 5extended | 129 | Peuker, Thomas (1471) | Lost 1-2 | -191482 |
| 6extended | 149 | Gansel, Toni (1593) | Lost 1-2 | -161466 |
| 7extended | 146 | Wolter, Christoph (1461) | Lost 1-2 | -181448 |
| 8extended | 134 | Malaussena, Arnaud (1412) | Lost 1-2 | -191429 |
| average opponent: 1506record: 2-6 | new rating: 1429 | |||