Campbell, Craig
Current rating: 1437
| Grand Prix Birmingham 2019 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 261 | Kovacs, Gabor (1367) | Lost 0-2 | -201408 |
| 2modern | 336 | Greens, Jordan (1470) | Won 2-1 | +201428 |
| 3modern | 120 | Harre, Martin (1550) | Won 2-1 | +201448 |
| 4modern | 282 | Cammilluzzi, Marco (1790) | Won 2-1 | +241472 |
| 5modern | 72 | Perikleous, George (1492) | Lost 0-2 | -181454 |
| 6modern | 259 | Vogel, Alexander (1501) | Lost 0-2 | -171437 |
| top | average opponent: 1529record: 3-3 | new rating: 1437 | ||
| Grand Prix Lyon 2018 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 568 | Kirwan, Jonnick (1500) | Lost 1-2 | -181465 |
| 2modern | 512 | Cordette, Clody (1617) | Lost 0-2 | -151450 |
| 3modern | 1013 | Horn, Florian (1392) | Won 2-1 | +171467 |
| 4modern | 700 | Wacker, Lucas (1392) | Lost 1-2 | -191448 |
| 5modern | 856 | Giachin Ricca, Stephane (1463) | Won 2-1 | +181466 |
| 6modern | 764 | Bessede, Benjamin (1479) | Lost 1-2 | -181448 |
| 7modern | 748 | Moittie, Cyril (1286) | Draw 1-1 | -31445 |
| 8modern | 662 | Pardon, Teddy (1461) | Lost 0-2 | -171428 |
| top | average opponent: 1449record: 2-5-1 | new rating: 1428 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | Watkins, Andrew (1464) | Won 2-1 | +171517 |
| 2standard | 50 | Russell, David (1551) | Won 2-1 | +191536 |
| 3standard | 245 | Fishwick, Shaun (1503) | Lost 1-2 | -191517 |
| 4standard | 539 | Worsnop, George (1550) | Lost 0-1 | -171500 |
| 5standard | 611 | Gill, Joakim (1556) | Lost 1-2 | -171483 |
| top | average opponent: 1525record: 2-3 | new rating: 1483 | ||