Merdes, Michael
Current rating: 1492
Record: 4-4
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 82 | Schutz, Karl Christian (1535) | Lost 0-2 | -171483 |
| 2extended | 160 | Kelterbaum, Catherine (1131) | Won 2-1 | +111494 |
| 3extended | 159 | Becker, Arne (1404) | Lost 1-2 | -191475 |
| 4extended | 164 | Klocke, Dennis (1431) | Won 0-0 | +171492 |
| 5extended | 125 | Ziebell, Lukas (1502) | Won 2-1 | +181510 |
| 6extended | 92 | Gerlich, Maximilian (1504) | Won 2-0 | +181528 |
| 7extended | 59 | Schneider, Dominik (1537) | Lost 1-2 | -181510 |
| 8extended | 97 | Speckmann, Marcel (1491) | Lost 0-2 | -181492 |
| average opponent: 1442record: 4-4 | new rating: 1492 | |||