Magnusson, Petter
Current rating: 1512
Record: 20-20
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 255 | Healey, Stewart (1483) | Lost 1-2 | -191548 |
| 2sealed | 402 | Taraca, Michail (1482) | Lost 1-2 | -201528 |
| 3sealed | 610 | Cleemann, Jonas (1729) | Lost 1-2 | -141514 |
| 4sealed | 577 | Ranzow, Daniel (1352) | Won 2-1 | +151529 |
| 5sealed | 500 | Dick, Alexander (1573) | Lost 1-2 | -171512 |
| top | average opponent: 1524record: 1-4 | new rating: 1512 | ||
| Grand Prix Gothenburg 2013 (DGM limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 160 | Moden, Anders (1597) | Won 2-1 | +191571 |
| 2sealed | 212 | Wijntjes, Robert (1460) | Won 2-1 | +161587 |
| 3sealed | 90 | Napierski, Kamil (1622) | Lost 1-2 | -181569 |
| 4sealed | 148 | Trulsson, Carl G (1518) | Lost 1-2 | -191550 |
| 5sealed | 344 | Strandbech, Peter (1598) | Won 2-0 | +191569 |
| 6sealed | 228 | Kjellstrom, Gustav (1494) | Lost 0-2 | -191550 |
| 7sealed | 223 | Saarela, Fredrik (1499) | Won 2-0 | +171567 |
| top | average opponent: 1541record: 4-3 | new rating: 1567 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 273 | Paiste, Paarn (1522) | Lost 0-2 | -181540 |
| 2sealed | 521 | Luton, Will (1488) | Won 2-0 | +171557 |
| 3sealed | 407 | Hernes, Robert (1500) | Lost 0-2 | -191538 |
| 4sealed | 763 | Lin, Niki (1482) | Won 2-1 | +171555 |
| 5sealed | 479 | De Berner, Alexei (1501) | Won 2-0 | +171572 |
| 6sealed | 448 | Marko, Vladimir (1480) | Lost 1-2 | -201552 |
| top | average opponent: 1495record: 3-3 | new rating: 1552 | ||
| Grand Prix Malmo 2012 (AVR limited) | starting rating: 1605 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 634 | Agergaard, Rene (1465) | Won 2-0 | +151620 |
| 2sealed | 565 | Horn, Mattias (1504) | Lost 1-2 | -201600 |
| 3sealed | 595 | Frisk, Morten K (1444) | Lost 1-2 | -211579 |
| 4sealed | 669 | Erichsen, Sebastian (1481) | Won 2-0 | +161595 |
| 5sealed | 653 | Taoubi, Farid (1597) | Lost 0-2 | -181577 |
| 6sealed | 501 | Fosse, Jostein (1518) | Lost 1-2 | -191558 |
| top | average opponent: 1501record: 2-4 | new rating: 1558 | ||
| Grand Prix Gothenburg 2010 (M11 limited) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Thunman, Daniel (1500) | Won 2-0 | +171551 |
| 2sealed | 25 | Karlsson, Rikard (1519) | Won 2-0 | +181569 |
| 3sealed | 62 | Jonsson, Anton (1823) | Lost 0-2 | -141555 |
| 4sealed | 113 | Gokhan, Sahin (1639) | Won 2-0 | +201575 |
| 5sealed | 53 | Rade, Olle (1862) | Won 2-1 | +231598 |
| 6sealed | 60 | Schraut, Andreas (1834) | Won 2-1 | +221620 |
| 7sealed | 36 | Calzolari, Lorenzo (1599) | Won 2-0 | +181638 |
| 8sealed | 24 | Kajala, Jussi (1724) | Lost 1-2 | -171621 |
| 9sealed | 25 | Caron, Jean Marc (1703) | Lost 1-2 | -161605 |
| top | average opponent: 1689record: 6-3 | new rating: 1605 | ||
| Grand Prix Gothenburg 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Westgardh, Nils (1500) | Won 2-0 | +181518 |
| 2sealed | 40 | Classen, Robert (1616) | Won 2-0 | +201538 |
| 3sealed | 40 | Franzen, Johan (1825) | Lost 1-2 | -131525 |
| 4sealed | 143 | Nygaard, Nikolas (1728) | Lost 0-2 | -141511 |
| 5sealed | 133 | Backfjard, Johan (1693) | Won 2-0 | +211532 |
| 6sealed | 82 | Martikainen, Pekka (1511) | Won 2-0 | +171549 |
| 7sealed | 55 | Polgary, Mikael (1674) | Lost 0-2 | -151534 |
| top | average opponent: 1650record: 4-3 | new rating: 1534 | ||