Piirainen, Tuomas
Current rating: 1484
Record: 4-5
| Grand Prix Gothenburg 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 533 | Noordhoek, Johan (1568) | Won 2-0 | +191519 |
| 2sealed | 608 | Klimov, Dmitriy (1520) | Lost 0-2 | -181501 |
| 3sealed | 589 | Rosander, Axel (1464) | Won 2-1 | +181519 |
| 4sealed | 630 | Gotfredsen, Anders (1523) | Lost 1-2 | -181501 |
| 5sealed | 633 | Franzen, Daniel (1502) | Lost 0-2 | -181483 |
| 6sealed | 650 | Korotaev, Alex (1482) | Lost 0-2 | -181465 |
| 7sealed | 633 | Sahl, Bo S (1464) | Won 2-1 | +181483 |
| 8sealed | 607 | Astedt, Erik (1482) | Won 2-0 | +181501 |
| 9sealed | 578 | Rhoton, Kenan (1552) | Lost 1-2 | -171484 |
| average opponent: 1506record: 4-5 | new rating: 1484 | |||