Mahar, Chris
Current rating: 1474
Record: 1-3
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 45 | Badran, Shady (1615) | Won 2-0 | +201520 |
| 5standard | 40 | Koska, Adam (1939) | Lost 0-2 | -111509 |
| 6standard | 35 | Held, Jeffrey R (1542) | Lost 1-2 | -171492 |
| 7standard | 143 | Preston, Derek (1484) | Lost 0-2 | -181474 |
| average opponent: 1645record: 1-3 | new rating: 1474 | |||