Campbell, Joshua
Current rating: 1410
Record: 15-21-1
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 24 | WYLIE, TREY (1500) | Lost 1-2 | -171440 |
| 2standard | 120 | Evans, Alex (1639) | Lost 1-2 | -151425 |
| 3standard | 153 | Wilken, William (1463) | Won 2-0 | +191444 |
| 4standard | 145 | Mears, Mitch (1502) | Lost 0-2 | -171427 |
| 5standard | 139 | Cooper, Aiden (1465) | Lost 0-0 | -171410 |
| top | average opponent: 1514record: 1-4 | new rating: 1410 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 410 | Pucci, Ryan (1500) | Lost 1-2 | -191497 |
| 2modern | 389 | Herzberg, Doug (1429) | Lost 0-2 | -191478 |
| 3modern | 710 | Heath, Joshua (1451) | Won 2-0 | +181496 |
| 4modern | 616 | Mahoney, Liam (1405) | Lost 0-2 | -201476 |
| 5modern | 635 | Penzo, James (1462) | Lost 0-2 | -181458 |
| 6modern | 583 | Ross, Amber (1449) | Won 2-1 | +181476 |
| 7modern | 486 | Pelowski, Nickolas (1441) | Lost 0-2 | -191457 |
| top | average opponent: 1448record: 2-5 | new rating: 1457 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 208 | Lanasa, James (1500) | Draw 1-1 | -11537 |
| 2standard | 242 | Dennis, Jason (1499) | Lost 0-2 | -191518 |
| 3standard | 452 | Harrell, Skyler (1481) | Lost 1-2 | -181500 |
| 4standard | 493 | Lepper, Lantz (1441) | Won 2-0 | +171517 |
| 5standard | 428 | Sanders, Kelle (1485) | Won 2-0 | +171534 |
| 6standard | 332 | Sobeck, Eric (1502) | Lost 0-2 | -181516 |
| top | average opponent: 1485record: 2-3-1 | new rating: 1516 | ||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 487 | Palermo, Felix (1500) | Won 2-0 | +181482 |
| 2modern | 316 | Chambless, Hart (1502) | Won 2-0 | +191501 |
| 3modern | 25 | Guinn, Adam (1447) | Lost 1-2 | -191482 |
| 4modern | 206 | Jones, Jason (1494) | Won 2-1 | +181500 |
| 5modern | 273 | Hamby, Stephan (1493) | Won 2-0 | +181518 |
| 6modern | 163 | Kassis, Eli (2018) | Lost 0-2 | -101508 |
| 7modern | 263 | Kalkbrenner, Matthew (1468) | Won 2-0 | +171525 |
| 8modern | 135 | Brokmeier, Steven (1513) | Won 2-1 | +181543 |
| 9modern | 102 | Bonura, Joseph (1554) | Won 2-0 | +181561 |
| 10modern | 70 | Scheuermann, Alex (1888) | Won 2-0 | +241585 |
| 11modern | 27 | Weiser, Daniel (2007) | Lost 0-2 | -111574 |
| 12modern | 81 | Smith, Courtney (1526) | Lost 0-2 | -181556 |
| 13modern | 93 | Biaggi, Andrea (1571) | Lost 0-2 | -181538 |
| top | average opponent: 1614record: 8-5 | new rating: 1538 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 268 | Maher, Justin (1500) | Won 2-0 | +181518 |
| 2standard | 204 | Taylor, Bradford (1518) | Lost 1-2 | -181500 |
| 3standard | 371 | Hampton, Nathan (1482) | Lost 0-2 | -181482 |
| 4standard | 509 | Fleming, Joshua (1481) | Lost 1-2 | -181464 |
| 5standard | 535 | Keslin, William (1463) | Lost 1-2 | -181446 |
| 6standard | 497 | Brown, David (1445) | Won 2-0 | +181464 |
| top | average opponent: 1482record: 2-4 | new rating: 1464 | ||