Kiehn, Patrick
Current rating: 1427
Record: 2-6-1
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 121 | Knelangen, Matthias (1484) | Won 2-1 | +181518 |
| 2extended | 80 | Kaltofen, Moritz (1449) | Lost 0-2 | -201498 |
| 3extended | 114 | Lippmann, Klaus D (1488) | Draw 1-1 | 01498 |
| 4extended | 149 | Chronopoulos, Bill (1655) | Lost 0-0 | -151483 |
| 5extended | 182 | Reichel-Dittes, Christopher (1438) | Lost 0-2 | -191464 |
| 6extended | 177 | Vladuca, Alin G (1404) | Lost 0-2 | -191445 |
| 7extended | 158 | Wacker, Jan (1442) | Lost 0-1 | -181427 |
| 8extended | 136 | Bettelhauser, Eike (1425) | Won 2-0 | +181445 |
| 9extended | 107 | Schroder, Harald (1450) | Lost 0-2 | -181427 |
| average opponent: 1471record: 2-6-1 | new rating: 1427 | |||