Leitham, Michael
Current rating: 1450
Record: 3-6
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 565 | Romito, Alexander (1518) | Won 2-1 | +191482 |
| 2sealed | 445 | Sadowsky, Joel (1544) | Lost 0-2 | -161466 |
| 3sealed | 511 | Kelley, Thomas E (1508) | Lost 0-2 | -181448 |
| 4sealed | 695 | Abendroth, Allen (1545) | Won 2-0 | +201468 |
| 5sealed | 546 | Veil, Bryan (1482) | Lost 0-2 | -181450 |
| average opponent: 1519record: 2-3 | new rating: 1450 | |||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 183 | Forward, Stephen (1496) | Lost 0-2 | -181482 |
| 2extended | 389 | Elias, Matthew H (1481) | Lost 0-2 | -181464 |
| 3extended | 412 | Craig, David (1461) | Won 2-0 | +181482 |
| 4extended | 366 | Quintero, Pedro (1461) | Lost 0-2 | -191463 |
| average opponent: 1475record: 1-3 | new rating: 1463 | |||