Brown, Jack
Current rating: 1459
Record: 6-9
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 330 | Dunn, James (1561) | Won 2-0 | +211447 |
| 2sealed | 61 | Chalmers, Kieran (1518) | Won 2-1 | +191466 |
| 3sealed | 74 | Xu, Dawson (1500) | Won 2-1 | +191485 |
| 4sealed | 2 | Lay, Nicholas (1554) | Lost 0-2 | -171468 |
| 5sealed | 150 | Low, Adrian (1588) | Lost 0-2 | -161452 |
| 6sealed | 197 | Soloway, Nikki (1521) | Won 2-0 | +201472 |
| 7sealed | 99 | Zhang, James (1798) | Lost 1-2 | -131459 |
| average opponent: 1577record: 4-3 | new rating: 1459 | |||
| Grand Prix Brisbane 2011 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 134 | Solomon, Luke (1466) | Won 2-1 | +171517 |
| 2standard | 14 | Whiting, Jared (1518) | Lost 0-2 | -181499 |
| 3standard | 76 | Ward, Archie (1500) | Lost 0-2 | -181481 |
| 4standard | 145 | Carter, Sam (1482) | Lost 0-0 | -181463 |
| 5standard | 153 | Howard, Lincoln J (1461) | Won 2-1 | +181481 |
| 6standard | 140 | Weyers, Beau (1432) | Lost 1-2 | -191462 |
| 7standard | 121 | Damm, Niels (1463) | Lost 0-2 | -181444 |
| 8standard | 117 | Cameron, Tyrel (1445) | Lost 1-2 | -181426 |
| average opponent: 1471record: 2-6 | new rating: 1426 | |||