Cormack, Sarah
Current rating: 1437
Record: 6-10
| Grand Prix Birmingham 2017 (modern) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 57 | Glover, Laurie (1488) | Lost 0-2 | -181427 |
| 2modern | 632 | Gangel-Ganesch, Andre (1466) | Lost 0-0 | -171410 |
| 3modern | 726 | Andrews, George (1428) | Won 2-0 | +181428 |
| 4modern | 756 | Atkinson, Ben (1503) | Won 2-0 | +201448 |
| 5modern | 588 | Fawcett, Joe (1467) | Won 2-0 | +181466 |
| 6modern | 259 | Ferguson, Sean (1702) | Won 2-0 | +221488 |
| 7modern | 289 | Barlow, Kristian (1510) | Lost 1-2 | -171471 |
| 8modern | 374 | Weytens, Thijs (1555) | Lost 0-2 | -171454 |
| 9modern | 466 | Hillmann, Alexander (1492) | Lost 1-2 | -171437 |
| average opponent: 1512record: 4-5 | new rating: 1437 | |||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 410 | Pegler, Alex (1492) | Lost 1-2 | -181482 |
| 2standard | 407 | Crampton, Joshua (1481) | Won 2-1 | +181500 |
| 3standard | 572 | Morley, Simon (1498) | Won 2-0 | +181518 |
| 4standard | 333 | Buchanan, Adam (1519) | Lost 1-2 | -181500 |
| 5standard | 557 | Larcombe, Owain (1431) | Lost 1-2 | -191481 |
| 6standard | 549 | Wilder, Harriet (1483) | Lost 1-2 | -181463 |
| 7standard | 579 | Pawlowski, Grzegorz (1463) | Lost 0-2 | -181445 |
| average opponent: 1481record: 2-5 | new rating: 1445 | |||