Rankka, Matti
Current rating: 1488
Record: 6-7-2
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Sinivaara, Heikki (1500) | Draw 1-1 | +11447 |
| 2sealed | 105 | Salonen, Visajaani (1500) | Draw 1-1 | +11448 |
| 3sealed | 157 | Tolpanniemi, Tapani (1483) | Won 2-0 | +191467 |
| 4sealed | 134 | Hintala, Markku (1499) | Won 2-0 | +181485 |
| 5sealed | 94 | Hamalainen, Olli 9152 (1537) | Won 2-1 | +191504 |
| 6sealed | 60 | Belogrivs, Imants (1500) | Won 2-0 | +181522 |
| 7sealed | 35 | Sovela, Jouni (1578) | Lost 0-2 | -171505 |
| 8sealed | 61 | Hautala, Janne (1537) | Lost 1-2 | -171488 |
| average opponent: 1517record: 4-2-2 | new rating: 1488 | |||
| Grand Prix Helsinki 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Ahola, Marko (1500) | Won 2-1 | +181518 |
| 2sealed | 77 | Oja, Olli M (1518) | Lost 0-2 | -181500 |
| 3sealed | 125 | Puustinen, Eetu (1499) | Lost 0-2 | -181482 |
| 4sealed | 154 | Saarinen, Aleksi (1482) | Lost 0-2 | -181464 |
| 5sealed | 152 | Vettenranta, Leif (1464) | Won 2-0 | +181482 |
| 6sealed | 128 | Tervonen, Janne (1482) | Lost 0-0 | -181464 |
| 7sealed | 132 | Salminen, Niko (1464) | Lost 1-2 | -181446 |
| average opponent: 1487record: 2-5 | new rating: 1446 | |||