Breckenridge, Joseph
Current rating: 1510
Record: 9-11
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 235 | Manansala, Bayani (1923) | Won 2-0 | +261511 |
| 3sealed | 318 | Wallerstein, Robert (1777) | Lost 0-2 | -141497 |
| 4sealed | 564 | Shotwell, Derrick (1517) | Won 2-1 | +191516 |
| 5sealed | 331 | Bertoncini, Alex (1694) | Lost 1-2 | -151501 |
| 6sealed | 279 | Walter, Royce (1671) | Won 2-0 | +211522 |
| 7sealed | 253 | Martell, Tom (1840) | Lost 0-2 | -121510 |
| top | average opponent: 1737record: 3-3 | new rating: 1510 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 94 | Richtsmeier, Gene (1709) | Won 2-0 | +221509 |
| 3standard | 80 | Howell, Kyle (1567) | Lost 1-2 | -171492 |
| 4standard | 278 | Inada, Scott (1803) | Won 2-0 | +241516 |
| 5standard | 251 | Suzuki, Anthony (1620) | Lost 0-2 | -161500 |
| 6standard | 285 | Chavez, Rafael (1614) | Lost 1-2 | -161484 |
| 7standard | 392 | Music, Dennis (1498) | Won 2-1 | +181502 |
| 8standard | 268 | Berlinrut, Gregory (1562) | Lost 0-2 | -171485 |
| top | average opponent: 1625record: 3-4 | new rating: 1485 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 654 | Anderson, Reggie (1500) | Won 2-1 | +181518 |
| 2standard | 331 | Stinnett, Benjamin (1583) | Won 2-0 | +191537 |
| 3standard | 89 | Mitchell, Miles (1521) | Lost 1-2 | -181519 |
| 4standard | 230 | Brinkman, Garrett (1673) | Won 2-0 | +211540 |
| 5standard | 227 | DeJong, Aaron (1522) | Lost 1-2 | -191521 |
| 6standard | 268 | Ezroj, Aaron (1733) | Lost 1-2 | -141507 |
| 7standard | 384 | Anderson, Kyle (1411) | Lost 0-2 | -201487 |
| top | average opponent: 1563record: 3-4 | new rating: 1487 | ||