Lahdekorpi, Juuso
Current rating: 1427
Record: 0-4
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Pikkarainen, Sami (1500) | Lost 0-2 | -181482 |
| 2sealed | 172 | Hanninen, Kari (1482) | Lost 0-2 | -181464 |
| 3sealed | 179 | Nipans, Aldis (1428) | Lost 0-2 | -191445 |
| 4sealed | 206 | Polvivaara, Kimmo (1446) | Lost 1-2 | -181427 |
| average opponent: 1464record: 0-4 | new rating: 1427 | |||