Sacks, Justin
Current rating: 1466
Record: 11-14
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 143 | Hawkins, Cody (1550) | Lost 0-2 | -171484 |
| 2sealed | 275 | Coleman, John (1482) | Lost 0-2 | -181466 |
| top | average opponent: 1516record: 0-2 | new rating: 1466 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Frank, Peter (1500) | Won 2-0 | +181519 |
| 2sealed | 98 | Son, Tony (1529) | Lost 1-2 | -181501 |
| 3sealed | 382 | Shih, Michael (1364) | Lost 0-2 | -201481 |
| 4sealed | 439 | Calvert, Marshall (1312) | Won 2-0 | +151496 |
| 5sealed | 345 | Turney, Christopher (1632) | Won 2-1 | +201516 |
| 6sealed | 225 | Logsdon, Jim (1638) | Lost 1-2 | -161500 |
| 7sealed | 320 | Lanning, Brian (1492) | Won 2-0 | +181518 |
| 8sealed | 236 | Freeman, Wilson (1581) | Lost 1-2 | -171501 |
| top | average opponent: 1506record: 4-4 | new rating: 1501 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Williams, Michael (1546) | Lost 0-2 | -171470 |
| 2sealed | 376 | Woods, Mark (1454) | Lost 0-2 | -181452 |
| 3sealed | 679 | Salinas, David (1396) | Won 2-0 | +161468 |
| 4sealed | 563 | Kieper, Jeff (1422) | Won 2-0 | +181486 |
| 5sealed | 447 | Mullin, Geoff (1649) | Won 2-1 | +211507 |
| 6sealed | 477 | Darrow, Elliot (1659) | Won 2-0 | +201527 |
| 7sealed | 206 | Ronquillo, Voltaire (1723) | Lost 1-2 | -141513 |
| 8sealed | 352 | Wellinger, Serafin (1868) | Lost 1-2 | -121501 |
| top | average opponent: 1590record: 4-4 | new rating: 1501 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 860 | DiGiovanni, Eric (1520) | Won 2-1 | +181518 |
| 2sealed | 708 | Morse, Sean (1655) | Lost 1-2 | -151503 |
| 3sealed | 891 | Henry, Jon (1454) | Lost 0-2 | -191484 |
| 4sealed | 1014 | Liemthongsamout, Pornenila (1471) | Won 2-0 | +181502 |
| 5sealed | 920 | Liorti, Andrew (1637) | Won 2-0 | +201522 |
| 6sealed | 822 | Glackin, Ryan (1524) | Lost 1-2 | -181504 |
| 7sealed | 837 | Speth, Travis (1532) | Lost 1-2 | -171487 |
| top | average opponent: 1542record: 3-4 | new rating: 1487 | ||