Shaft, Justin
Current rating: 1542
Record: 6-5
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Dodd, Robert (1480) | Won 2-0 | +181485 |
| 2sealed | 148 | Stricklin, Spencer (1518) | Lost 1-2 | -171468 |
| 3sealed | 306 | McElvany, Jackson (1417) | Won 2-0 | +171485 |
| 4sealed | 312 | Ramsey, Phillip (1448) | Won 2-0 | +171502 |
| 5sealed | 185 | Quinn, Serena (1675) | Won 2-0 | +211523 |
| 6sealed | 98 | Hayne, Alexander (2095) | Won 2-0 | +271550 |
| 7sealed | 20 | Parke, Jamie (2032) | Lost 1-2 | -91541 |
| 8sealed | 79 | Chenard, Frederic (1527) | Won 2-0 | +171558 |
| 9sealed | 94 | Sconci, Jacob (1628) | Lost 1-2 | -161542 |
| average opponent: 1647record: 6-3 | new rating: 1542 | |||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Leza, Eddie (1651) | Lost 0-2 | -151485 |
| 2sealed | 383 | Grimes, Evan (1482) | Lost 0-2 | -181467 |
| average opponent: 1567record: 0-2 | new rating: 1467 | |||