Koncz, Ronnie
Current rating: 1466
Record: 6-8
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Ward Jr., Walter (1500) | Lost 1-2 | -181499 |
| 2sealed | 463 | Rosenblum, James (1667) | Lost 0-2 | -151484 |
| 3sealed | 700 | Leyden, Brandon (1464) | Won 2-0 | +181502 |
| 4sealed | 611 | Outeiral, Anthony (1530) | Lost 1-2 | -181484 |
| 5sealed | 590 | Carlberg, Dan (1465) | Lost 0-2 | -181466 |
| average opponent: 1525record: 1-4 | new rating: 1466 | |||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 757 | Wills, Ian (1500) | Lost 0-0 | -181482 |
| 2sealed | 769 | Conta, Anthony (1575) | Won 2-0 | +201502 |
| 3sealed | 775 | Montemagni, Christophe (1483) | Won 2-0 | +171519 |
| 4sealed | 780 | Avilla, Anthony (1553) | Lost 1-2 | -171502 |
| 5sealed | 775 | Ryan, Mark (1471) | Won 2-0 | +171519 |
| 6sealed | 764 | Brown, Blake (1518) | Lost 1-2 | -181501 |
| 7sealed | 735 | Arenstein, Max (1394) | Won 2-0 | +161517 |
| 8sealed | 676 | McDougal, Shaun (1469) | Won 2-0 | +181535 |
| 9sealed | 603 | Fuzzi, Stefano (1569) | Lost 0-2 | -181517 |
| average opponent: 1504record: 5-4 | new rating: 1517 | |||