Ferrell, Joseph
Current rating: 1510
Record: 14-16
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 233 | Austin, Brandon (1541) | Lost 0-2 | -181529 |
| 2modern | 292 | Olmstead, Mike (1520) | Won 2-1 | +181547 |
| 3modern | 271 | Sutliff, Casey (1538) | Lost 1-2 | -191528 |
| 4modern | 373 | Sweeney, Colin (1530) | Lost 0-2 | -181510 |
| top | average opponent: 1532record: 1-3 | new rating: 1510 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1437 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 187 | Rogers, Jason (1467) | Won 2-1 | +191456 |
| 2modern | 283 | Sta.Ana, Micol (1598) | Won 2-0 | +201476 |
| 3modern | 3 | Frazier, Steven (1546) | Won 2-1 | +201496 |
| 4modern | 25 | Pinto, Goncalo (1901) | Lost 1-2 | -111485 |
| 5modern | 242 | Kuisma, Matti (2043) | Won 2-1 | +271512 |
| 6modern | 149 | McDonough, Ryan (1792) | Lost 0-2 | -131499 |
| 7modern | 163 | Murphy, Patrick9575 (1531) | Won 2-1 | +181517 |
| 8modern | 222 | Gardner, Christian (1556) | Won 2-1 | +191536 |
| 9modern | 121 | Combs, Floyd (1543) | Won 2-1 | +181554 |
| 10modern | 95 | Phillips, Dylan (1609) | Lost 0-2 | -171537 |
| 11modern | 80 | Eliatamby, Charles (1785) | Won 2-1 | +231560 |
| 12modern | 51 | Van Cleave, Trey (1849) | Lost 0-2 | -131547 |
| top | average opponent: 1685record: 8-4 | new rating: 1547 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 843 | Escobar, Eduardo (1500) | Won 2-0 | +191486 |
| 2sealed | 565 | Martin, Fletcher (1518) | Lost 0-2 | -181468 |
| 3sealed | 883 | Mathis, Jeffrey (1509) | Won 2-1 | +191487 |
| 4sealed | 756 | Hazuka, Anthony (1422) | Lost 1-2 | -191468 |
| 5sealed | 1024 | Cores, Ari (1667) | Lost 0-2 | -151453 |
| 6sealed | 1029 | Corzo, Robert (1554) | Lost 0-2 | -161437 |
| top | average opponent: 1528record: 2-4 | new rating: 1437 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Mason, Thomas (1441) | Lost 0-2 | -191487 |
| 2sealed | 501 | Stewart, Alexander (1397) | Lost 0-2 | -201467 |
| top | average opponent: 1419record: 0-2 | new rating: 1467 | ||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 346 | Hartness, John (1500) | Won 2-0 | +181518 |
| 2sealed | 412 | Park, Will (1586) | Lost 0-2 | -171501 |
| 3sealed | 582 | Cannon, Christopher (1675) | Won 2-1 | +211522 |
| 4sealed | 490 | Ceballos, Stefan (1598) | Won 2-0 | +201542 |
| 5sealed | 487 | Waalkes, Phillip (1535) | Lost 0-2 | -181524 |
| 6sealed | 541 | Herren, Jason (1535) | Lost 1-2 | -181506 |
| top | average opponent: 1572record: 3-3 | new rating: 1506 | ||