Verdell, Joshua
Current rating: 1578
Record: 13-9
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 60 | Germ, Christopher (1453) | Lost 0-2 | -201578 |
| top | record: 0-1 | new rating: 1578 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1051 | Macfarlane, Donald (1500) | Won 2-0 | +181518 |
| 2modern | 1257 | Taylor, Alex (1518) | Lost 1-2 | -181500 |
| 3modern | 1523 | Gough, Brad (1466) | Won 1-0 | +181518 |
| 4modern | 1382 | Dennis, Andrew (1550) | Won 2-0 | +181536 |
| 5modern | 1183 | Schmuckler, Brett (1545) | Won 2-1 | +181554 |
| 6modern | 1118 | Roy, Anjon (1517) | Lost 0-2 | -181536 |
| 7modern | 1238 | MacDonald, Asher (1518) | Won 2-0 | +171553 |
| 8modern | 1152 | Davis, Gordon (1544) | Won 2-1 | +181571 |
| 9modern | 1075 | Stambaugh, Trent (1599) | Won 2-0 | +191590 |
| 10modern | 120 | McIelwain, Glenn (1942) | Won 2-0 | +241614 |
| 11modern | 82 | Ketel, Ben (1735) | Lost 1-2 | -161598 |
| top | average opponent: 1585record: 8-3 | new rating: 1598 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 451 | Holland, Joe (1499) | Lost 0-2 | -191500 |
| 3sealed | 583 | Hughes, Jim (1502) | Won 2-0 | +181518 |
| 4sealed | 587 | Robers, Daniel J (1517) | Lost 1-2 | -181500 |
| top | average opponent: 1506record: 1-2 | new rating: 1500 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 4 | Carp, Benjamin D (1555) | Lost 0-2 | -171483 |
| 2legacy | 515 | Zvonek, Randall (1482) | Won 2-0 | +181501 |
| 3legacy | 291 | Ranallo, Nick (1501) | Won 2-1 | +181519 |
| 4legacy | 247 | Melnick, Michael (1504) | Won 2-1 | +181537 |
| 5legacy | 180 | Wauer, Carl (1559) | Lost 1-2 | -181519 |
| 6legacy | 279 | Wolfe, James (1437) | Won 2-0 | +171536 |
| 7legacy | 240 | Vance, James (1595) | Lost 0-2 | -171519 |
| top | average opponent: 1519record: 4-3 | new rating: 1519 | ||