O'Connell, John
Current rating: 1463
Record: 2-4
| Grand Prix Melbourne 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Swann, Jack R (1500) | Won 2-1 | +181518 |
| 2sealed | 141 | Jiang, Xi (1518) | Lost 0-2 | -181500 |
| 3sealed | 96 | Sheehan, Robert (1449) | Won 2-1 | +171517 |
| 4sealed | 140 | Hoskin, Elliot (1490) | Lost 1-2 | -181499 |
| 5sealed | 142 | O'Halloran, Tyler (1503) | Lost 0-2 | -181481 |
| 6sealed | 192 | Westerman, Like (1485) | Lost 1-2 | -181463 |
| average opponent: 1491record: 2-4 | new rating: 1463 | |||