Coffey, Douglas A
Current rating: 1540
Record: 4-2-1
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 215 | Mueller, Kyle C (1519) | Draw 1-1 | 01500 |
| 3standard | 140 | Witt, Joshua (1518) | Won 2-1 | +191519 |
| 4standard | 113 | Harkins, Jesse (1535) | Won 2-0 | +181537 |
| 5standard | 56 | McKinney, Ryan (1563) | Lost 1-2 | -181519 |
| 6standard | 124 | Alexander, David L (1535) | Won 2-0 | +191538 |
| 7standard | 76 | Rice, Stephen (1620) | Lost 1-2 | -171521 |
| 8standard | 134 | Coleman, Brad (1538) | Won 2-0 | +191540 |
| average opponent: 1547record: 4-2-1 | new rating: 1540 | |||