Jonsson, Gudmundur
Current rating: 1461
| Grand Prix Paris 2016 (OGW standard) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 291 | Ghiura, Alexandru (1571) | Won 2-0 | +191533 |
| 2standard | 70 | van Doorn, Lorenzo (1411) | Lost 0-2 | -201513 |
| 3standard | 436 | Guyon, Guillaume (1500) | Lost 1-2 | -181495 |
| 4standard | 562 | Orlandi, Yannick (1482) | Lost 1-2 | -181477 |
| 5standard | 653 | Harman, Jack (1593) | Lost 0-2 | -161461 |
| top | average opponent: 1511record: 1-4 | new rating: 1461 | ||
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 386 | Dodd, James (1500) | Won 2-0 | +181512 |
| 2sealed | 141 | Hjortswang, Alexandra (1518) | Won 2-0 | +181530 |
| 3sealed | 306 | Rose, Dan (1452) | Won 2-0 | +171547 |
| 4sealed | 51 | Long, Liam (1523) | Lost 1-2 | -191528 |
| 5sealed | 229 | Van Holsbeeck, Kristof (1718) | Lost 0-2 | -141514 |
| 6sealed | 378 | Thompkins, Alex (1528) | Won 2-0 | +181532 |
| 7sealed | 198 | Sedgman, Charles (1543) | Lost 1-2 | -181514 |
| top | average opponent: 1540record: 4-3 | new rating: 1514 | ||
| Grand Prix Stockholm 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 111 | Solly, Ryan (1500) | Lost 1-2 | -181482 |
| 2standard | 281 | Kotiranta, Tuomas (1701) | Lost 0-2 | -141468 |
| 3standard | 469 | Tarander, Daniel (1465) | Won 2-0 | +181486 |
| 4standard | 39 | Boo, Jesper (1575) | Won 2-1 | +201506 |
| 5standard | 100 | Radesater, Tobias (1381) | Lost 1-2 | -211485 |
| 6standard | 377 | Hartmann, Robert (1419) | Won 2-1 | +171502 |
| 7standard | 35 | Angelin, Marcus (1771) | Lost 0-2 | -131489 |
| 8standard | 258 | Zung, Martin (1485) | Won 2-0 | +181507 |
| 9standard | 223 | Linden, Mikael (1803) | Lost 1-2 | -131494 |
| top | average opponent: 1567record: 4-5 | new rating: 1494 | ||