Koptisch, Stefan
Current rating: 1541
Record: 22-22
| Grand Prix Leipzig 2005 (BOK limited) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Liebmann, Falk (1500) | Won 2-0 | +171562 |
| 2sealed | 19 | Rus, Tine (1546) | Lost 0-2 | -181544 |
| 3sealed | 84 | Hansen, Thomas (1504) | Won 2-0 | +171561 |
| 4sealed | 77 | Schwarz, Stephan (1519) | Won 2-0 | +181579 |
| 5sealed | 39 | Sader, Andre (1584) | Lost 1-2 | -181561 |
| 6sealed | 87 | Kappeli, Alex (1589) | Won 2-0 | +181579 |
| 7sealed | 63 | Bevere, Gianluca (1631) | Lost 0-2 | -171562 |
| 8sealed | 77 | Muller, Ronald 2 (1401) | Lost 0-2 | -211541 |
| top | average opponent: 1534record: 4-4 | new rating: 1541 | ||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 273 | Verheesen, Rene (1500) | Won 2-0 | +191445 |
| 2extended | 28 | Zweers, Peter (1518) | Won 2-0 | +201465 |
| 3extended | 41 | Gerards, Remco (1497) | Won 2-0 | +181483 |
| 4extended | 21 | Warmenhoven, Ruud (1743) | Lost 0-2 | -131470 |
| 5extended | 162 | Peerdeman, Bart (1483) | Lost 1-2 | -181452 |
| 6extended | 200 | Le, Phuoc-Hung (1467) | Won 2-0 | +181470 |
| 7extended | 172 | Fiori, Stefano (1702) | Won 2-0 | +231493 |
| 8extended | 73 | Pils, Florian (1640) | Won 2-1 | +201513 |
| 9extended | 40 | Buchar, Viktor (1508) | Won 2-1 | +181531 |
| 10extended | 44 | De Wael, Tom (1640) | Won 2-0 | +201551 |
| 11extended | 20 | Coenen, Rob (1666) | Won 2-1 | +201571 |
| 12extended | 9 | Canali, Pierre (1866) | Lost 0-2 | -131558 |
| 13extended | 22 | Richter, Niels (1628) | Lost 1-2 | -161542 |
| 14extended | 30 | Brozek, Jan (1592) | Won 2-1 | +191561 |
| 15extended | 27 | Ruess, Jan (1710) | Lost 0-0 | -161545 |
| top | average opponent: 1611record: 10-5 | new rating: 1545 | ||
| Grand Prix Rimini 2004 (Mirrodin block) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 90 | Ekimov, Vladimir (1446) | Lost 0-2 | -181417 |
| 2block | 232 | Ruth, Melvin (1451) | Lost 1-2 | -171400 |
| 3block | 315 | Satke, David (1463) | Lost 1-2 | -171383 |
| 4block | 360 | Schuler, Julien (1460) | Lost 1-2 | -171366 |
| 5block | 325 | Roger, Corfu (1428) | Won 2-0 | +201386 |
| 6block | 276 | Osojnik, Aljaz (1446) | Won 2-0 | +191405 |
| 7block | 225 | Crippa, Marco (1466) | Won 2-0 | +191424 |
| 8block | 164 | Ferri, Matteo (1483) | Lost 1-2 | -171407 |
| 9block | 147 | Corato, Fabio (1464) | Won 2-0 | +191426 |
| top | average opponent: 1457record: 4-5 | new rating: 1426 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 279 | Klumpp, Berthold (1500) | Won 2-1 | +181483 |
| 2sealed | 67 | Montandon, Tatiana (1469) | Won 2-0 | +181501 |
| 3sealed | 105 | Goertzen, Simon (1504) | Lost 0-2 | -181483 |
| 4sealed | 269 | Ruth, Melvin (1484) | Won 2-0 | +181501 |
| 5sealed | 132 | Persson, Andreas (1660) | Lost 0-2 | -151486 |
| 6sealed | 225 | Zinnecker, Tim (1472) | Lost 0-2 | -181468 |
| 7sealed | 205 | Haeberli, Juerg (1535) | Lost 0-2 | -171451 |
| 8sealed | 201 | Ros, Jordi (1569) | Lost 0-2 | -161435 |
| top | average opponent: 1524record: 3-5 | new rating: 1435 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | Koszka, Przemyslaw (1500) | Lost 1-2 | -181482 |
| 2sealed | 280 | Foltyn, Viktor (1485) | Won 2-1 | +181500 |
| 3sealed | 316 | Oberbek, Przemyslaw (1571) | Lost 0-2 | -171483 |
| 4sealed | 311 | Danek, Jiri (1446) | Lost 0-2 | -181465 |
| top | average opponent: 1501record: 1-3 | new rating: 1465 | ||