Obrien, Billy
Current rating: 1446
Record: 1-4
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 168 | Cole, Phil (1535) | Lost 1-2 | -171483 |
| 2standard | 452 | OLIFF, CULLEN (1487) | Lost 1-2 | -181465 |
| 3standard | 649 | Colber, Kyle (1462) | Won 2-0 | +181483 |
| 4standard | 628 | Johnson, Nicholas d (1481) | Lost 1-2 | -181465 |
| 5standard | 641 | TwoCrow, Aaron (1449) | Lost 0-2 | -191446 |
| average opponent: 1483record: 1-4 | new rating: 1446 | |||