Zapp, Karsten
Current rating: 1507
Record: 3-3-1
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 242 | Szufnarowski, Grzegorz (1390) | Won 2-0 | +161516 |
| 2sealed | 172 | Scheuchenstuhl, Martin (1677) | Won 2-1 | +211537 |
| 3sealed | 113 | Wysoczanski, Krzysztof (1631) | Lost 1-2 | -161521 |
| 4sealed | 193 | Bohringer, Steffen (1596) | Lost 0-2 | -171504 |
| 5sealed | 228 | Gasparac, Luka (1663) | Draw 1-1 | +31507 |
| 6sealed | 271 | Wilke, Marc (1506) | Won 2-1 | +181525 |
| 7sealed | 202 | Schonherr, Georg (1518) | Lost 0-2 | -181507 |
| average opponent: 1569record: 3-3-1 | new rating: 1507 | |||