Leonarczyk, James
Current rating: 1419
Record: 5-10
| Grand Prix New Jersey 2017 (std) (AER standard) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 126 | Patella, Keith (1572) | Lost 0-2 | -161454 |
| 2standard | 454 | Markson, Samuel (1505) | Lost 0-2 | -171437 |
| 3standard | 774 | Leo, Matthew (1464) | Lost 0-2 | -181419 |
| top | average opponent: 1514record: 0-3 | new rating: 1419 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 12 | Lydon, Erik (1463) | Won 2-1 | +181485 |
| 2sealed | 127 | Iberti, Colin (1518) | Lost 1-2 | -171468 |
| 3sealed | 384 | Johnson, Justin (1558) | Lost 0-2 | -161452 |
| 4sealed | 676 | Bennett, Joseph 2 (1482) | Won 2-1 | +181470 |
| top | average opponent: 1505record: 2-2 | new rating: 1470 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | McPherson, Steven (1500) | Lost 0-2 | -191504 |
| 2standard | 637 | Liu, John (1482) | Lost 0-2 | -181486 |
| 3standard | 674 | Hair, Chris (1464) | Lost 1-2 | -191467 |
| top | average opponent: 1482record: 0-3 | new rating: 1467 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 115 | Kerchner-pirrone, Journey (1500) | Won 2-0 | +181518 |
| 2sealed | 87 | Winner, Tom (1516) | Lost 1-2 | -181500 |
| 3sealed | 122 | Herkner, Chris (1486) | Won 2-1 | +181518 |
| 4sealed | 138 | Stewart, Michael (1525) | Won 2-1 | +181536 |
| 5sealed | 85 | Benafel, Chris (1809) | Lost 0-2 | -131523 |
| top | average opponent: 1567record: 3-2 | new rating: 1523 | ||