Firth, Clifford
Current rating: 1447
Record: 0-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 37 | Keaveny, Joseph (1528) | Lost 0-2 | -171483 |
| 3sealed | 282 | Schwander, Michael T (1500) | Lost 0-2 | -181465 |
| 4sealed | 268 | Silberman, Philip (1482) | Lost 0-2 | -181447 |
| average opponent: 1503record: 0-3 | new rating: 1447 | |||