Mertalo, Oskari
Current rating: 1367
| Grand Prix Hasselt 2006 (RAV limited) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 26 | Kientzler, Nicolas (1500) | Lost 1-2 | -161414 |
| 2sealed | 170 | Lim, Keat Kuang (1506) | Lost 1-2 | -171397 |
| 3sealed | 201 | Masse, Yves (1368) | Draw 1-1 | 01397 |
| 4sealed | 223 | Jorissen, Ruben H (1467) | Won 2-0 | +191416 |
| 5sealed | 174 | Verhoeff, Ben (1481) | Lost 1-2 | -171399 |
| 6sealed | 168 | Vanderheyden, David (1439) | Won 1-0 | +191418 |
| 7sealed | 131 | Schmitt, Sebastian (1484) | Lost 1-2 | -171401 |
| 8sealed | 109 | San Lorenzo, Nordine (1446) | Lost 0-2 | -171384 |
| 9sealed | 91 | Fetzer, Konstatin (1435) | Lost 0-0 | -171367 |
| top | average opponent: 1458record: 2-6-1 | new rating: 1367 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Stavas, Ola (1524) | Lost 1-2 | -171468 |
| 2sealed | 163 | ter Wal, Gerjan (1448) | Lost 0-2 | -181450 |
| 3sealed | 247 | Poell, Johan (1463) | Lost 1-2 | -181432 |
| 4sealed | 264 | Hassler, Oliver (1322) | Lost 0-2 | -201412 |
| 5sealed | 239 | Montagne, Francois (1428) | Draw 1-1 | 01412 |
| 6sealed | 210 | Rooijmans, Toon (1409) | Won 2-1 | +181430 |
| 7sealed | 167 | Vanormelingen, John (1410) | Won 2-1 | +181448 |
| 8sealed | 132 | Allouchery, Gonzague (1486) | Lost 0-2 | -181430 |
| top | average opponent: 1436record: 2-5-1 | new rating: 1430 | ||
| Grand Prix Helsinki 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 76 | Rekila, Panu (1500) | Won 2-0 | +181518 |
| 2sealed | 17 | Norin, Sergey (1486) | Won 2-0 | +171535 |
| 3sealed | 12 | Gundersen, Thomas (1639) | Lost 1-2 | -161519 |
| 4sealed | 53 | Ollila, Mika (1642) | Lost 1-2 | -151504 |
| 5sealed | 119 | Laine, Lauri (1500) | Lost 0-2 | -191485 |
| 6sealed | 127 | Nyberg, Janne (1482) | Lost 0-0 | -181467 |
| 7sealed | 120 | Leppaaho, Petri (1464) | Won 2-0 | +181485 |
| top | average opponent: 1530record: 3-4 | new rating: 1485 | ||