Mcbroom Ii, John
Current rating: 1447
Record: 3-6
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 26 | Marcotte, Ryan (1500) | Won 2-0 | +181518 |
| 2sealed | 70 | Levitt, Adam (1575) | Lost 1-2 | -171501 |
| 3sealed | 197 | Wallace, Nathan G (1500) | Lost 0-2 | -181483 |
| 4sealed | 299 | Gemme, Mike (1482) | Won 2-0 | +181501 |
| 5sealed | 212 | Sebastian, Andy (1502) | Won 2-1 | +181519 |
| 6sealed | 113 | Kelahan, Seamus (1519) | Lost 0-2 | -181501 |
| 7sealed | 166 | Kokkinos, Constantinos (1499) | Lost 1-2 | -181483 |
| 8sealed | 125 | Smolensky, Nathan (1487) | Lost 0-2 | -181465 |
| 9sealed | 96 | Cannata, David (1466) | Lost 0-2 | -181447 |
| average opponent: 1503record: 3-6 | new rating: 1447 | |||