Gammersvik, Oystein
Current rating: 1445
Record: 2-5
| Grand Prix Oslo 1999 (ULG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 49 | Gravdal, Jakob (1500) | Lost 0-1 | -181482 |
| 2sealed | 123 | Merdem, Knut-Erik (1482) | Lost 0-2 | -181464 |
| 3sealed | 150 | Harjen, Audun (1464) | Won 2-0 | +181482 |
| 4sealed | 135 | Jones, Craig (1460) | Lost 0-2 | -181464 |
| 5sealed | 137 | Jerrewing, Mattias (1464) | Lost 0-2 | -181446 |
| 6sealed | 138 | Paulsberg, Andre (1446) | Lost 0-1 | -181428 |
| 7sealed | 128 | Sorgard, Einar (1392) | Won 2-0 | +171445 |
| average opponent: 1458record: 2-5 | new rating: 1445 | |||