Summer, Ralph
Current rating: 1499
Record: 4-4
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Argiriu, Jiri (1500) | Lost 1-2 | -181482 |
| 2sealed | 293 | Utvic, Branislava (1430) | Won 2-0 | +171499 |
| 3sealed | 238 | Banaskiewicz, Krzysztof (1501) | Lost 0-2 | -181481 |
| 4sealed | 400 | Kranabetter, Christian (1484) | Won 2-0 | +181499 |
| 5sealed | 260 | Vehovec, Luka (1500) | Won 2-0 | +181517 |
| 6sealed | 206 | Claessen, Tim (1471) | Won 2-0 | +171534 |
| 7sealed | 94 | Ardolino, Fabio (1537) | Lost 0-2 | -181516 |
| 8sealed | 145 | Czapara, Piotr (1528) | Lost 0-2 | -171499 |
| average opponent: 1494record: 4-4 | new rating: 1499 | |||