Griffieth, Joel
Current rating: 1429
Record: 2-6
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 154 | Graziano, AJ (1491) | Lost 0-2 | -171444 |
| 2sealed | 415 | Guardiano, Raymond (1462) | Won 2-1 | +181462 |
| 3sealed | 419 | Sweat, Daniel (1534) | Lost 1-2 | -171445 |
| 4sealed | 539 | Tyra, Evan (1524) | Lost 0-2 | -161429 |
| average opponent: 1503record: 1-3 | new rating: 1429 | |||
| Grand Prix New Jersey 2018 (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 74 | Ellis, Matt (1357) | Won 2-1 | +151515 |
| 2standard | 260 | Montes, Christian (1463) | Lost 0-2 | -191496 |
| 3standard | 383 | Tran, William (1545) | Lost 0-2 | -171479 |
| 4standard | 482 | Puzio, Stephen (1472) | Lost 1-2 | -181461 |
| average opponent: 1459record: 1-3 | new rating: 1461 | |||