Comerford, Sean E
Current rating: 1481
Record: 2-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Berry, Tyler (1500) | Won 2-0 | +181518 |
| 2sealed | 135 | Lara Reinhold, Marcos (1500) | Won 2-1 | +181536 |
| 3sealed | 23 | Beloin, Dave J (1536) | Lost 1-2 | -181518 |
| 4sealed | 152 | Jones, Travis (1456) | Lost 1-2 | -191499 |
| 5sealed | 223 | Schwander, Michael T (1501) | Lost 0-2 | -181481 |
| average opponent: 1499record: 2-3 | new rating: 1481 | |||