Mathiasson, Jonas
Current rating: 1543
Record: 14-12-2
| Grand Prix Gothenburg 2003 (MRD limited) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 143 | Johansson, Roland (1500) | Won 1-0 | +171562 |
| 2sealed | 95 | Liukka, Ossi (1459) | Won 2-0 | +161578 |
| 3sealed | 62 | Appel, Rene (1711) | Lost 0-2 | -161562 |
| 4sealed | 129 | Vodstrup, Tobias (1486) | Lost 0-2 | -191543 |
| top | average opponent: 1539record: 2-2 | new rating: 1543 | ||
| Grand Prix Copenhagen 2002 (ONS rochester) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 38 | Pedersen, Soren (1543) | Lost 0-2 | -181545 |
| top | record: 0-1 | new rating: 1545 | ||
| Grand Prix Gothenburg 2001 (PLS limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Klimecki, Adam (1503) | Won 2-0 | +181499 |
| 2sealed | 67 | Karaszewski, Pawel (1354) | Draw 1-1 | -31496 |
| 3sealed | 73 | Foldevi, Jonas (1517) | Won 2-1 | +191515 |
| 4sealed | 52 | Berlin, Martin (1472) | Won 2-0 | +171532 |
| 5sealed | 24 | Bryngelsson, Emil (1573) | Won 2-1 | +191551 |
| 6sealed | 12 | Steinaa, Jakob (1671) | Lost 0-2 | -161535 |
| 7sealed | 35 | Nobari, Poya (1547) | Won 2-1 | +181553 |
| 8draft | 15 | Punakallio, Mikko (1677) | Won 2-1 | +201573 |
| 9draft | 10 | Levy, Raphael (1832) | Lost 0-2 | -131560 |
| 10draft | 22 | Norris, Pete (1582) | Lost 1-2 | -181542 |
| 11draft | 23 | Foldevi, Jonas (1552) | Lost 1-2 | -171525 |
| 12draft | 26 | Cedercrantz, Johan (1615) | Won 2-0 | +191544 |
| 13draft | 22 | Hoppe, Karsten (1582) | Won 2-0 | +191563 |
| top | average opponent: 1575record: 8-4-1 | new rating: 1563 | ||
| Grand Prix Copenhagen 2000 (PCY limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 36 | Le Loeuff, Julien (1414) | Won 2-1 | +161498 |
| 2sealed | 101 | Thomsen, Mattias (1518) | Draw 1-1 | +11499 |
| 3sealed | 145 | Hellegaard, Allan (1486) | Lost 0-2 | -181481 |
| top | average opponent: 1473record: 1-1-1 | new rating: 1481 | ||
| Grand Prix Oslo 1999 (ULG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Johnsson, Kristoffer (1500) | Won 2-0 | +181518 |
| 2sealed | 52 | Jonsson, Anton (1518) | Lost 1-2 | -181500 |
| 3sealed | 65 | Bergesen, Ole (1482) | Won 2-0 | +181518 |
| 4sealed | 73 | Christensen, Benn (1518) | Lost 0-2 | -181500 |
| 5sealed | 103 | Solfjell, Erik (1500) | Won 2-0 | +181518 |
| 6sealed | 57 | Holen, Sigurd (1515) | Lost 1-2 | -181500 |
| 7sealed | 79 | Morten Gregersen, Pal (1500) | Lost 0-2 | -181482 |
| top | average opponent: 1505record: 3-4 | new rating: 1482 | ||