Thorsby, Vidar
Current rating: 1567
| Grand Prix Paris 2004 (COK limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 42 | Kohl, Reinhold (1599) | Won 2-1 | +191566 |
| 3sealed | 22 | Roulet, Julie (1536) | Won 2-0 | +171583 |
| 4sealed | 30 | Palumbo, Rocco (1529) | Lost 0-2 | -191564 |
| 5sealed | 114 | Riviere, Alexandre (1581) | Lost 0-2 | -181546 |
| 6sealed | 166 | Hausvirt, Cedric (1518) | Won 2-1 | +181564 |
| 7sealed | 117 | Gouin, Steven (1844) | Won 2-1 | +231587 |
| 8sealed | 68 | Genero, Olivier (1485) | Lost 1-2 | -201567 |
| top | average opponent: 1585record: 4-3 | new rating: 1567 | ||
| Grand Prix Copenhagen 2002 (ONS rochester) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 40 | Pefanis, Dimitris (1491) | Lost 0-2 | -191500 |
| 3sealed | 145 | Hoglund, Kim (1533) | Draw 1-1 | +11501 |
| 4sealed | 167 | Larsen, Michael 0524 (1524) | Won 2-1 | +181519 |
| 5sealed | 119 | Cheorny, Leonid (1570) | Won 2-1 | +191538 |
| 6sealed | 76 | Pech, Rene (1568) | Won 2-0 | +191557 |
| 7sealed | 44 | Geertsen, Svend (2009) | Lost 1-2 | -101547 |
| top | average opponent: 1616record: 3-2-1 | new rating: 1547 | ||
| Grand Prix Oslo 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 76 | Boberg, Fredrik (1517) | Lost 0-2 | -181482 |
| 2block | 103 | Frid, Mats Gjemsdal (1486) | Won 2-0 | +181500 |
| 3block | 69 | Rodby, Rasmus (1471) | Won 2-0 | +181518 |
| 4block | 62 | Egenberg, Herman (1517) | Won 2-0 | +181536 |
| 5block | 29 | Nilsson, Michael (1470) | Lost 0-2 | -191517 |
| 6block | 73 | van der Velden, Stan (1666) | Won 2-0 | +201537 |
| 7block | 39 | Areliusarson, Arelius (1514) | Lost 1-2 | -181519 |
| top | average opponent: 1520record: 4-3 | new rating: 1519 | ||