Belk, Jonathan
Current rating: 1481
Record: 2-3
| Grand Prix Boston 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 54 | Brazil, Jared (1500) | Lost 0-2 | -181482 |
| 2extended | 261 | Webster, Alan (1502) | Lost 1-2 | -181464 |
| 3extended | 282 | Levander, William (1464) | Won 2-0 | +181482 |
| 4extended | 241 | Hodnett, James (1431) | Won 2-0 | +171499 |
| 5extended | 186 | Li, Chester (1499) | Lost 1-2 | -181481 |
| average opponent: 1479record: 2-3 | new rating: 1481 | |||