Cubal, Mariana
Current rating: 1514
Record: 5-4
| Grand Prix Birmingham 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 466 | Buchanan, Adam (1536) | Lost 0-2 | -171483 |
| 2modern | 589 | Yip, Jermaine (1445) | Lost 0-0 | -191464 |
| 3modern | 734 | Waller, Alan (1464) | Lost 0-2 | -181446 |
| 4modern | 803 | Paramos Albea, Rosa Ana (1442) | Won 2-1 | +181464 |
| 5modern | 796 | Bumbar, Alex (1464) | Lost 0-2 | -181446 |
| 6modern | 735 | Meissner, Regina (1415) | Won 2-1 | +171463 |
| 7modern | 661 | Cowey, Joe (1432) | Won 2-1 | +181481 |
| 8modern | 495 | Astor, Graham (1443) | Won 2-0 | +171498 |
| 9modern | 385 | Allen, Tim (1401) | Won 2-1 | +161514 |
| average opponent: 1449record: 5-4 | new rating: 1514 | |||