Jonsson, Karl-johan
Current rating: 1505
| Grand Prix Stockholm 2014 (KTK standard) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 219 | Ekholm, Niklas (1506) | Won 2-1 | +191469 |
| 2standard | 14 | Andersson, Petrus (1518) | Won 2-0 | +191488 |
| 3standard | 156 | Carlsson, Per (1674) | Lost 0-2 | -151473 |
| 4standard | 268 | Halen, Aarne (1716) | Won 2-1 | +231496 |
| 5standard | 301 | Lagerspetz, Simo (1740) | Lost 1-2 | -141482 |
| 6standard | 291 | Hultin, Oskar (1525) | Draw 1-1 | +11483 |
| 7standard | 236 | Feyand, Florian (1567) | Won 2-1 | +191502 |
| 8standard | 153 | Misnik, Mateusz (1552) | Won 2-0 | +191521 |
| 9standard | 103 | McGovern, Mark (1609) | Lost 0-2 | -161505 |
| top | average opponent: 1601record: 5-3-1 | new rating: 1505 | ||
| Grand Prix Gothenburg 2013 (DGM limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 207 | Hagg, Kristoffer (1500) | Won 2-1 | +191483 |
| 2sealed | 161 | Schultz, Anders (1517) | Lost 1-2 | -181465 |
| 3sealed | 345 | Peuker, Thomas (1526) | Won 2-0 | +201485 |
| 4sealed | 254 | Matuszewski, Aleksander (1528) | Lost 0-2 | -181467 |
| 5sealed | 279 | Mizrak, Tom (1505) | Lost 1-2 | -171450 |
| top | average opponent: 1515record: 2-3 | new rating: 1450 | ||
| Grand Prix Gothenburg 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Elfgren, John (1500) | Lost 1-2 | -181482 |
| 2sealed | 151 | Middel, Mere (1482) | Lost 0-2 | -181464 |
| 3sealed | 202 | Henriksen, Jorgen (1471) | Won 2-1 | +181482 |
| 4sealed | 187 | Alegi, Nelson (1482) | Lost 0-2 | -181464 |
| top | average opponent: 1484record: 1-3 | new rating: 1464 | ||