Zelinka, Joseph
Current rating: 1356
Record: 2-10
| Grand Prix Atlanta 2018 (modern) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 121 | Goff, Parker (1549) | Lost 0-2 | -161408 |
| 2modern | 351 | Liening, Michael (1399) | Lost 0-2 | -181390 |
| 3modern | 716 | Rahm, Andrew (1463) | Lost 1-2 | -171373 |
| 4modern | 724 | Amuzzini, Robert (1447) | Lost 1-2 | -171356 |
| average opponent: 1465record: 0-4 | new rating: 1356 | |||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 136 | Lennartz, Eric (1370) | Lost 0-2 | -201480 |
| 2standard | 427 | Cox, Scott (1482) | Won 2-0 | +181498 |
| 3standard | 396 | Mead, Amanda (1500) | Lost 0-2 | -181480 |
| 4standard | 512 | Clark, James (1480) | Lost 0-2 | -181462 |
| 5standard | 574 | Pettyjohn, Randy (1462) | Won 2-0 | +181480 |
| 6standard | 452 | Higginson, Eric (1480) | Lost 0-2 | -181462 |
| 7standard | 497 | Murphy, Patrick (1447) | Lost 0-2 | -191443 |
| 8standard | 430 | Lettieri, Matt (1339) | Lost 0-2 | -191424 |
| average opponent: 1445record: 2-6 | new rating: 1424 | |||