Haefele, Joe
Current rating: 1464
Record: 1-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 124 | Novakowski, George (1500) | Lost 0-2 | -181482 |
| 2sealed | 305 | Gordon, David J (1482) | Lost 0-2 | -181464 |
| 3sealed | 317 | Noel, Michael (1465) | Won 2-0 | +181482 |
| 4sealed | 267 | Feeley, Sam (1468) | Lost 0-2 | -181464 |
| average opponent: 1479record: 1-3 | new rating: 1464 | |||