Koch, Dorothee
Current rating: 1387
| Grand Prix Vienna 2008 (extended) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 31 | Taylor, Nicholas (1420) | Lost 0-2 | -191442 |
| 2extended | 206 | Gill, Joakim (1468) | Lost 0-2 | -171425 |
| 3extended | 229 | Merlet, Cedric (1341) | Lost 1-2 | -201405 |
| 4extended | 260 | Huber, Christian (1364) | Lost 0-2 | -181387 |
| top | average opponent: 1398record: 0-4 | new rating: 1387 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 77 | Petit, Benjamin (1500) | Won 2-1 | +181518 |
| 2sealed | 35 | Steffens, Tilman (1506) | Won 2-1 | +181536 |
| 3sealed | 58 | Koenning, Matthias (1518) | Lost 1-2 | -191517 |
| 4sealed | 192 | Clemensen, Lars (1467) | Lost 1-2 | -191498 |
| 5sealed | 213 | Schmittbuettner, Bernd (1478) | Lost 0-2 | -181480 |
| 6sealed | 213 | Stephan, Juergen (1516) | Won 2-0 | +191499 |
| 7sealed | 149 | Thomas, Niklas (1506) | Lost 0-2 | -181481 |
| 8sealed | 147 | Staudt, Thomas (1392) | Lost 0-2 | -201461 |
| top | average opponent: 1486record: 3-5 | new rating: 1461 | ||
| Grand Prix Strasbourg 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 60 | Margerie, Guillaume (1500) | Draw 1-1 | 01500 |
| 2block | 152 | Goulette, Marc (1521) | Lost 0-2 | -181482 |
| 3block | 220 | Bernizet, Anthony (1445) | Won 2-0 | +181500 |
| 4block | 190 | Michalec, Florian (1501) | Lost 1-2 | -181482 |
| 5block | 217 | Murschel, Vincent (1486) | Won 2-1 | +181500 |
| 6block | 164 | Wandel, Marco (1501) | Lost 0-2 | -181482 |
| 7block | 176 | Oriez, Etienne (1480) | Won 2-0 | +181500 |
| top | average opponent: 1491record: 3-3-1 | new rating: 1500 | ||