Cox, Joseph
Current rating: 1470
Record: 8-11-3
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 265 | Harrison, Taylor (1428) | Won 2-0 | +181459 |
| 2modern | 138 | Pagan, Alberto (1468) | Lost 1-2 | -181441 |
| 3modern | 750 | Bartelli, Michael (1497) | Won 2-1 | +191460 |
| 4modern | 349 | Link, David (1516) | Won 2-1 | +191479 |
| 5modern | 281 | Shillingburg, TJ (1474) | Lost 0-2 | -181461 |
| 6modern | 538 | King, Tim (1595) | Won 2-1 | +211482 |
| 7modern | 393 | Garret, Austin (1539) | Won 1-0 | +191501 |
| 8modern | 103 | Gamez, Dale (1577) | Lost 1-2 | -171484 |
| 9modern | 239 | Monk, Derek (1721) | Lost 0-2 | -141470 |
| top | average opponent: 1535record: 5-4 | new rating: 1470 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 478 | Mobley, Mitchell (1500) | Won 2-0 | +191454 |
| 2sealed | 190 | Clouse, Justin (1584) | Lost 0-2 | -161438 |
| 3sealed | 496 | Sandahl, Bryan (1498) | Draw 1-1 | +11439 |
| 4sealed | 648 | Hernandez, Markis (1498) | Won 2-1 | +191458 |
| 5sealed | 433 | Cox, Charles (1521) | Lost 1-2 | -171441 |
| top | average opponent: 1520record: 2-2-1 | new rating: 1441 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 850 | Swan, Thomas (1581) | Draw 1-1 | +31431 |
| 2modern | 931 | Fortanely, Bobby (1484) | Lost 1-2 | -171414 |
| 3modern | 1073 | Thompson, Randall (1483) | Won 2-0 | +191433 |
| 4modern | 985 | Corter, Bryant (1521) | Draw 1-1 | +21435 |
| top | average opponent: 1517record: 1-1-2 | new rating: 1435 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 244 | Papinchak, John (1500) | Lost 1-2 | -181482 |
| 2modern | 392 | Galicia, Jose (1482) | Lost 0-2 | -181464 |
| 3modern | 512 | Hollis, Andrew (1463) | Lost 0-2 | -181446 |
| 4modern | 547 | Burdo, Victoria (1446) | Lost 0-2 | -181428 |
| top | average opponent: 1473record: 0-4 | new rating: 1428 | ||