O'Brien, Meaghan
Current rating: 1449
| Grand Prix Detroit 2001 (PLS limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 93 | Frangiosa, Richie (1530) | Lost 0-2 | -171449 |
| top | record: 0-1 | new rating: 1449 | ||
| Grand Prix Boston 2001 (PLS limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 69 | Ngu, Vi (1500) | Won 2-0 | +191483 |
| 3sealed | 74 | Rothman, Ben (1484) | Lost 1-2 | -181465 |
| 4sealed | 123 | Tsoi, Man (1473) | Won 2-0 | +181483 |
| 5sealed | 59 | Macmichael, Cory (1520) | Lost 1-2 | -171466 |
| top | average opponent: 1494record: 2-2 | new rating: 1466 | ||
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 178 | Ozbasli, Hakki (1500) | Lost 0-0 | -181482 |
| 2extended | 194 | Fusco, John (1482) | Lost 0-0 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||