Grey, Sean
Current rating: 1419
Record: 6-11
| Grand Prix Portland 2018 (modern) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 374 | Sinclair, Hunter (1475) | Lost 0-2 | -181434 |
| 2modern | 462 | Kassahn, Jason (1462) | Lost 0-2 | -171417 |
| 3modern | 762 | Hayes, Brook (1377) | Lost 0-2 | -191398 |
| 4modern | 817 | Kutcher, Aidan (1441) | Lost 0-2 | -171381 |
| 5modern | 766 | Reedy, Aiden (1442) | Won 2-0 | +191400 |
| 6modern | 634 | Vela, Jacob (1446) | Won 2-0 | +191419 |
| 7modern | 488 | Gaffney, Sean (1467) | Won 2-1 | +191438 |
| 8modern | 386 | Tomomizu, Takuya (1379) | Lost 0-2 | -191419 |
| average opponent: 1436record: 3-5 | new rating: 1419 | |||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 147 | Soares, Michael (1500) | Won 2-0 | +181518 |
| 2standard | 288 | Allen, Ethan (1517) | Won 2-0 | +181536 |
| 3standard | 286 | Bailey, Alice (1413) | Won 2-1 | +161552 |
| 4standard | 100 | Naide, Kazutaka (1839) | Lost 1-2 | -131539 |
| 5standard | 238 | Estrada, Russell (1434) | Lost 0-2 | -201519 |
| 6standard | 297 | Davoudi, Mani (1875) | Lost 0-2 | -121507 |
| 7standard | 400 | Van Deurs, Ralph (1501) | Lost 0-2 | -181489 |
| 8standard | 449 | Kowallis, Ketric (1485) | Lost 0-2 | -181471 |
| 9standard | 398 | Hopkins, Celia (1415) | Lost 0-2 | -191452 |
| average opponent: 1553record: 3-6 | new rating: 1452 | |||