Couberly, Brian
Current rating: 1483
Record: 6-7
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Edholm, Marcus (1500) | Won 2-1 | +191500 |
| 2sealed | 189 | Aull, Katherine (1493) | Lost 1-2 | -191481 |
| 3sealed | 561 | Gutierrez, Kenneth (1500) | Won 2-0 | +191500 |
| 4sealed | 368 | Hamilton, David (1398) | Lost 1-2 | -201480 |
| 5sealed | 479 | Fujimoto, Justin (1596) | Won 2-1 | +201500 |
| 6sealed | 376 | Schade, Eric (1536) | Lost 1-2 | -171483 |
| average opponent: 1504record: 3-3 | new rating: 1483 | |||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 168 | Hayes, Jeffery (1500) | Won 2-0 | +181518 |
| 2standard | 218 | Grey, Jason (1465) | Lost 0-2 | -191499 |
| 3standard | 391 | Bowe, Mitchell (1470) | Lost 0-2 | -181481 |
| 4standard | 671 | Ornelas, Joshua (1481) | Won 2-0 | +181499 |
| 5standard | 565 | Young, Brian (1546) | Lost 0-2 | -181481 |
| 6standard | 522 | Michelet, Trystan (1481) | Won 2-0 | +181499 |
| 7standard | 508 | Montague, Jason (1488) | Lost 1-2 | -181481 |
| average opponent: 1490record: 3-4 | new rating: 1481 | |||