Valkas, Juha
Current rating: 1459
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1197 | Pande-Rolfsen, Vidar (1500) | Lost 0-2 | -181479 |
| 2sealed | 1256 | Domey, Christopher (1482) | Lost 1-2 | -181461 |
| 3sealed | 1274 | Valentin, Gerome (1381) | Won 2-1 | +161477 |
| 4sealed | 1244 | Levy, Jonathan [ISR] (1441) | Lost 0-2 | -181459 |
| top | average opponent: 1451record: 1-3 | new rating: 1459 | ||
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 65 | Schelvander, Perola (1462) | Won 2-0 | +161555 |
| 2sealed | 58 | Saikkonen, Aleksi (1484) | Lost 0-2 | -191536 |
| 3sealed | 80 | Raukomaa, Joonas (1500) | Lost 0-2 | -191517 |
| 4sealed | 164 | Vettenranta, Leif (1383) | Lost 0-2 | -201497 |
| top | average opponent: 1457record: 1-3 | new rating: 1497 | ||
| Grand Prix Helsinki 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | Vaananen, Aleksi (1500) | Won 2-0 | +181518 |
| 2sealed | 68 | Koskimaki, Antti (1480) | Won 2-0 | +171535 |
| 3sealed | 3 | Nenye, Vesa (1580) | Won 2-0 | +191554 |
| 4sealed | 22 | Yatsenko, Alex (1572) | Won 2-0 | +181572 |
| 5sealed | 8 | Davydova, Zhanna (1574) | Draw 1-1 | 01572 |
| 6sealed | 11 | Monsen, Haakon (1668) | Lost 0-0 | -161556 |
| 7sealed | 29 | Rybalchenko, Andrey (1576) | Lost 1-2 | -171539 |
| top | average opponent: 1564record: 4-2-1 | new rating: 1539 | ||