Radtke, Jan
Current rating: 1500
Record: 8-8
| Grand Prix Copenhagen 2005 (extended) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 34 | Breit, Bernhard (1565) | Lost 0-2 | -171482 |
| 2extended | 128 | Rokkjaer, Simon (1482) | Won 2-1 | +181500 |
| 3extended | 108 | Gasiorowski, Pawel (1504) | Lost 1-2 | -181482 |
| 4extended | 137 | Schwarz, Sascha (1482) | Lost 0-2 | -181464 |
| 5extended | 149 | Einarsson, Bjarni (1463) | Lost 1-2 | -181446 |
| 6extended | 140 | Borup, Kai Rune (1445) | Won 2-0 | +181464 |
| 7extended | 108 | Van Borm, Thomas (1461) | Won 2-0 | +181482 |
| 8extended | 91 | Sorensen, Hjalte (1466) | Won 2-0 | +181500 |
| average opponent: 1483record: 4-4 | new rating: 1500 | |||
| Grand Prix Leipzig 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Landt, Nils (1419) | Won 2-0 | +171517 |
| 2sealed | 6 | Rasmussen, Anders (1617) | Lost 0-2 | -171500 |
| 3sealed | 114 | Liederbach, Florian (1465) | Lost 1-2 | -181482 |
| 4sealed | 155 | Friedel, Sebastian (1482) | Lost 0-2 | -181464 |
| 5sealed | 173 | Baris, Dennis (1464) | Won 2-0 | +181482 |
| 6sealed | 148 | Zierenner, Fabian (1482) | Won 2-0 | +181500 |
| 7sealed | 95 | Gorbyk, Artem (1451) | Won 2-1 | +171517 |
| 8sealed | 84 | Muller, Flavio (1532) | Lost 0-2 | -181499 |
| average opponent: 1489record: 4-4 | new rating: 1499 | |||