Barton, Aaron
Current rating: 1535
Record: 5-3
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 111 | Janasiewicz, Jason (1448) | Lost 1-2 | -191481 |
| 2standard | 295 | Carlstrom, Logan (1446) | Won 2-0 | +171498 |
| 3standard | 369 | Lorrekovich, Joshua (1501) | Won 2-1 | +181516 |
| 4standard | 342 | Walters, Les (1487) | Won 2-1 | +181534 |
| 5standard | 120 | Bovett, Sean (1543) | Lost 0-2 | -181516 |
| 6standard | 321 | Chatham, Benjamin (1558) | Won 2-0 | +191535 |
| 7standard | 234 | Novak, Ed (1527) | Won 2-0 | +181553 |
| 8standard | 72 | Berni, Roberto (1567) | Lost 1-2 | -181535 |
| average opponent: 1510record: 5-3 | new rating: 1535 | |||