Roy, Joe M
Current rating: 1466
Record: 1-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Stevens, Hanna (1500) | Won 2-0 | +181518 |
| 2sealed | 155 | Baum, Nathan (1664) | Lost 0-2 | -151503 |
| 3sealed | 164 | Strong, Tom (1482) | Lost 0-2 | -191484 |
| 4sealed | 276 | Huang, Ray (1482) | Lost 1-2 | -181466 |
| average opponent: 1532record: 1-3 | new rating: 1466 | |||