Buchanan, Carl
Current rating: 1464
Record: 2-4
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 35 | Hoffmann, James W (1500) | Won 2-1 | +181518 |
| 2standard | 224 | Bartlett, Justin (1502) | Lost 1-2 | -181500 |
| 3standard | 278 | Prato, Sander (1500) | Won 2-1 | +181518 |
| 4standard | 151 | Park, Sebastian Y (1537) | Lost 1-2 | -181500 |
| 5standard | 312 | Short, Daniel (1499) | Lost 0-2 | -181482 |
| 6standard | 294 | Durso, Nicholas (1481) | Lost 0-2 | -181464 |
| average opponent: 1503record: 2-4 | new rating: 1464 | |||