Karns, Joseph
Current rating: 1461
Record: 1-3
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 393 | Phillips, Joshua (1492) | Lost 0-2 | -181482 |
| 2sealed | 447 | Leone, Joseph (1481) | Won 2-0 | +181500 |
| 3sealed | 473 | Derrick, Samuel (1474) | Lost 0-2 | -191481 |
| 4sealed | 581 | Sperry, Richard (1354) | Lost 1-2 | -201461 |
| average opponent: 1450record: 1-3 | new rating: 1461 | |||