Jansson, John
Current rating: 1493
Record: 3-4
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 540 | Halkjaer, Sune (1500) | Won 2-1 | +181518 |
| 2modern | 170 | Wagner, Sebastian (1490) | Won 2-0 | +171535 |
| 3modern | 388 | Bostrom, Daniel (1537) | Lost 1-2 | -171518 |
| 4modern | 305 | Diniz, Hugo (1985) | Lost 1-2 | -111507 |
| 5modern | 679 | Porten, Andreas (1532) | Won 2-0 | +191526 |
| 6modern | 281 | Wulf, Jesper (1727) | Lost 1-2 | -141512 |
| 7modern | 528 | Georg, Oluf Sonne (1503) | Lost 1-2 | -191493 |
| average opponent: 1611record: 3-4 | new rating: 1493 | |||