O'Dowd, Brendan P
Current rating: 1559
Record: 6-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Fish, Jessica (1481) | Won 2-1 | +181518 |
| 2sealed | 13 | Coggins, Nichol M (1517) | Lost 1-2 | -181500 |
| 3sealed | 169 | McGrath, Colin (1499) | Won 2-0 | +181518 |
| 4sealed | 98 | Neiman, Luis (1496) | Won 2-0 | +171535 |
| 5sealed | 70 | Wade, Brian (1535) | Won 2-1 | +181553 |
| 6sealed | 36 | Huynh, Anthony (1558) | Lost 0-2 | -181535 |
| 7sealed | 66 | Panas, Michael (1541) | Won 2-1 | +181553 |
| 8sealed | 72 | Cammilleri, Mike (1536) | Won 2-0 | +181571 |
| 9sealed | 43 | Lebedowicz, Osyp (1916) | Lost 0-2 | -121559 |
| average opponent: 1564record: 6-3 | new rating: 1559 | |||