Petersson, Martin
Current rating: 1461
| Grand Prix Heidelberg 2002 (TOR limited) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 263 | Lowenbruck, Joachim (1501) | Lost 0-2 | -171418 |
| 2sealed | 346 | Beck, Markus (1481) | Won 2-1 | +191437 |
| 3sealed | 235 | Gaspar, Attila (1477) | Won 2-0 | +191456 |
| 4sealed | 165 | Mokrusch, Falko (1555) | Draw 1-1 | +21458 |
| 5sealed | 177 | van Damme, Guy (1507) | Lost 0-2 | -171441 |
| 6sealed | 202 | Pick, Tobias (1501) | Won 2-0 | +191460 |
| 7sealed | 128 | Hoelzel, Reinhard (1463) | Lost 0-2 | -181442 |
| 8sealed | 134 | Hoelzl, Johannes (1539) | Won 2-1 | +191461 |
| top | average opponent: 1503record: 4-3-1 | new rating: 1461 | ||
| Grand Prix Cologne 2001 (PLS limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 80 | Heitmann, Stefan (1500) | Lost 1-2 | -171431 |
| 2sealed | 171 | Scholz, Florian (1483) | Won 2-0 | +191450 |
| 3sealed | 145 | Moises, Sebastian (1482) | Lost 0-2 | -181432 |
| 4sealed | 173 | Winther, Lasse (1455) | Won 2-0 | +191451 |
| 5sealed | 164 | Podeschwa, Alexander (1487) | Lost 0-2 | -181433 |
| 6sealed | 153 | Jatsch, Otmar (1450) | Won 2-0 | +191452 |
| 7sealed | 138 | Kohler, Daniel (1509) | Lost 0-2 | -171435 |
| top | average opponent: 1481record: 3-4 | new rating: 1435 | ||
| Grand Prix Amsterdam 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1 | van Acker, Arthur (1500) | Won 2-0 | +181518 |
| 2sealed | 134 | Kruschel, Andreas (1583) | Lost 0-2 | -171501 |
| 3sealed | 188 | Krummel, Christian (1499) | Lost 0-2 | -181483 |
| 5sealed | 163 | de Boer, Wim (1500) | Lost 0-2 | -181465 |
| 6sealed | 195 | Weenink, Gerco (1485) | Lost 0-2 | -171448 |
| top | average opponent: 1513record: 1-4 | new rating: 1448 | ||