Cortez, Ralph
Current rating: 1437
Record: 5-9
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 559 | Dunn, Jayce (1330) | Lost 0-2 | -211451 |
| 2modern | 695 | Brown, Terrance (1447) | Won 2-0 | +181469 |
| 3modern | 1175 | Gidanian, Samuel (1579) | Won 2-0 | +201489 |
| 4modern | 483 | Stocker, Andreas (1478) | Lost 0-2 | -181471 |
| 5modern | 1170 | Seo, Kenta (1558) | Lost 1-2 | -171454 |
| 6modern | 1176 | Bressler, Benjamin (1481) | Lost 1-2 | -171437 |
| average opponent: 1479record: 2-4 | new rating: 1437 | |||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 160 | Harris, Franklin (1515) | Lost 0-2 | -181482 |
| 2modern | 699 | Gutierrez Saldate, Luis Fernando (1886) | Lost 1-2 | -111471 |
| 3modern | 965 | Pepper, Lindsay (1393) | Won 2-0 | +171488 |
| 4modern | 797 | Hirsch, Jason (1510) | Won 2-1 | +181506 |
| 5modern | 621 | Fong, Alvin (1355) | Won 2-1 | +151521 |
| 6modern | 637 | DiMaggio, Matthew (1629) | Lost 1-2 | -161505 |
| 7modern | 719 | Sanchez, Rudy (1535) | Lost 0-2 | -171488 |
| 8modern | 659 | Swiney, Bruce (1584) | Lost 1-2 | -161472 |
| average opponent: 1551record: 3-5 | new rating: 1472 | |||