Widberg, Per-Johan
Current rating: 1500
Record: 6-6-4
| Grand Prix Stockholm 2018 (modern) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 135 | Pedersen, Jonathan (1492) | Won 2-0 | +181494 |
| 2modern | 126 | Andersson, Johan (1425) | Lost 1-2 | -191475 |
| 3modern | 350 | Bau, Katrine (1634) | Won 2-0 | +211496 |
| 4modern | 384 | Hallavo, Ville (1445) | Won 2-1 | +171513 |
| 5modern | 233 | Naumann, Davis (1511) | Lost 0-2 | -181495 |
| 6modern | 381 | Steen, Christoffer (1469) | Won 2-1 | +171512 |
| 7modern | 118 | Lorenc, Michal (1802) | Lost 0-2 | -121500 |
| average opponent: 1540record: 4-3 | new rating: 1500 | |||
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 382 | Mizzoni, Joel (1504) | Draw 1-1 | 01500 |
| 2modern | 417 | Kyle, Ben (1500) | Lost 0-1 | -181482 |
| 3modern | 768 | Lopez Prieto, Jose (1210) | Lost 0-2 | -231459 |
| 4modern | 831 | Brandt, Casper (1465) | Draw 1-1 | 01459 |
| 5modern | 846 | Gorner Albrecht, Ralf-Patrick (1461) | Won 1-0 | +181477 |
| 6modern | 760 | Hvidt, Ulver (1506) | Draw 1-1 | +11478 |
| 7modern | 710 | Nylander, Emil (1468) | Draw 0-0 | 01478 |
| 8modern | 618 | Pihl, Tobias (1471) | Lost 0-2 | -181460 |
| 9modern | 555 | Eden, Amy (1371) | Won 2-0 | +161476 |
| average opponent: 1440record: 2-3-4 | new rating: 1476 | |||