O Byrne, John S
Current rating: 1494
Record: 3-3
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 348 | Bell, Stephen (1500) | Lost 0-2 | -181482 |
| 2legacy | 536 | Argue, Robert (1485) | Won 2-1 | +181500 |
| 3legacy | 563 | Rubinstein, Garrett (1429) | Won 2-1 | +171517 |
| 4legacy | 552 | Cowley, Travis (1483) | Lost 0-2 | -191498 |
| 5legacy | 591 | Weckerly, Joshua (1464) | Won 2-1 | +181516 |
| 6legacy | 234 | Black, Seth (1346) | Lost 0-2 | -221494 |
| average opponent: 1451record: 3-3 | new rating: 1494 | |||