Parker, Joey
Current rating: 1341
| Grand Prix Atlanta 2018 (modern) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 58 | Hopkins, Tyler (1356) | Lost 0-2 | -181369 |
| 2modern | 544 | Harden, Brandon (1447) | Lost 1-2 | -171352 |
| 3modern | 700 | Waller, Kelli (1469) | Lost 0-2 | -161336 |
| 4modern | 714 | Yang, Shigong (1467) | Won 2-0 | +211357 |
| 5modern | 611 | De Stefano, Sean (1462) | Lost 1-2 | -161341 |
| top | average opponent: 1440record: 1-4 | new rating: 1341 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1376 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 364 | Starbuck, Jason (1481) | Won 2-1 | +201396 |
| 2standard | 169 | Jakimovski, Sam (1448) | Lost 1-2 | -171379 |
| 3standard | 311 | Billings, Thomas (1449) | Won 2-1 | +191398 |
| 4standard | 179 | Solorzano, Michaelle (1582) | Won 2-1 | +221420 |
| 5standard | 132 | Eveland, James (1490) | Lost 1-2 | -171403 |
| 6standard | 336 | Arroyo, Josue (1542) | Lost 1-2 | -161387 |
| top | average opponent: 1499record: 3-3 | new rating: 1387 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 139 | Oliveros, Michael (1566) | Lost 1-2 | -171483 |
| 2standard | 295 | Jones, Paul (1428) | Lost 0-2 | -191464 |
| 3standard | 357 | Hurst, Greg (1528) | Lost 1-2 | -171447 |
| 4standard | 442 | Aprim, Matthew (1446) | Lost 0-2 | -181429 |
| 5standard | 414 | Daniels, Sean (1428) | Draw 1-1 | 01429 |
| 6standard | 371 | Vance, David (1447) | Lost 0-2 | -171412 |
| 7standard | 321 | Schooley, Tiffany (1428) | Lost 1-2 | -181394 |
| 8standard | 278 | Reuter, George (1408) | Lost 0-2 | -181376 |
| top | average opponent: 1460record: 0-7-1 | new rating: 1376 | ||