Hafey, Ronald
Current rating: 1427
Record: 1-5
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 910 | custer, jonathon (1449) | Lost 0-2 | -191481 |
| 2standard | 996 | Fiscus, Quinn (1482) | Lost 1-2 | -181463 |
| 3standard | 993 | Elias-warren, Rob D (1464) | Lost 0-2 | -181445 |
| 4standard | 1030 | Jasie, David J (1448) | Lost 0-2 | -181427 |
| 5standard | 984 | Roop, David (1428) | Lost 1-2 | -181409 |
| 6standard | 920 | Folsom, Jack (1410) | Won 2-0 | +181427 |
| average opponent: 1447record: 1-5 | new rating: 1427 | |||