Cunha, Charles
Current rating: 1408
Record: 6-12
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1405 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 226 | Fenseca, Oscar (1500) | Lost 0-2 | -171388 |
| 2sealed | 426 | Pham, Parker (1413) | Won 2-0 | +191407 |
| 3sealed | 631 | Rodriguez, Christopher (1351) | Won 2-0 | +171424 |
| 4sealed | 248 | Maune, Sarah (1471) | Lost 0-2 | -171407 |
| 5sealed | 525 | Molsee, Nate (1373) | Won 2-0 | +171424 |
| 6sealed | 435 | Ross, Dustin (1556) | Lost 0-2 | -161408 |
| top | average opponent: 1444record: 3-3 | new rating: 1408 | ||
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 277 | Avila, Renato (1500) | Lost 0-2 | -161412 |
| 2modern | 397 | Shizuo Hassler, Roland (1482) | Won 2-1 | +191431 |
| 3modern | 480 | Siqueira Julio, Gustavo (1589) | Lost 0-2 | -151416 |
| 4modern | 370 | Elizalde, Victor (1558) | Won 2-1 | +201436 |
| 5modern | 413 | Sinti, Aurelio (1500) | Won 2-0 | +201456 |
| 6modern | 306 | Miom Maria, Eberton Henrique (1521) | Lost 0-2 | -171439 |
| 7modern | 353 | Fuenzalida, Alvaro (1554) | Lost 1-2 | -161423 |
| 8modern | 331 | Godoy Junior, Celso Antonio (1413) | Lost 0-2 | -181405 |
| top | average opponent: 1515record: 3-5 | new rating: 1405 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 271 | Bloom, Dianne (1511) | Lost 0-2 | -181482 |
| 2sealed | 644 | Strumpf, Jonathan (1570) | Lost 1-2 | -161466 |
| 4sealed | 1033 | Iman, Yeremia (1447) | Lost 0-2 | -191447 |
| 5sealed | 966 | Chrisler, Lindsay (1388) | Lost 0-2 | -191428 |
| top | average opponent: 1479record: 0-4 | new rating: 1428 | ||