Duong, Joshua
Current rating: 1408
| Grand Prix Sydney 2019 (RNA limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 13 | Pirie, Andrew (1566) | Won 2-0 | +201453 |
| 2sealed | 77 | Seymour, Hamish (1549) | Lost 0-2 | -161437 |
| 3sealed | 173 | Smith, Dylan [AUS] (1451) | Lost 0-2 | -181419 |
| 4sealed | 197 | Graham, Aaron [AUS] (1707) | Won 2-1 | +231442 |
| 5sealed | 120 | Morton, Benjamin (1506) | Lost 1-2 | -171425 |
| 6sealed | 163 | Chen, David (1460) | Lost 0-2 | -171408 |
| top | average opponent: 1540record: 2-4 | new rating: 1408 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 202 | Smith, Niall (1446) | Lost 1-2 | -181444 |
| 2sealed | 231 | Higgins, Kim (1481) | Won 2-1 | +181462 |
| 3sealed | 273 | Ruse, Kayne (1504) | Lost 1-2 | -171445 |
| 4sealed | 872 | Chen, Gary [AUS] (1619) | Won 2-0 | +211466 |
| 5sealed | 369 | Simon, Michael (1592) | Lost 0-2 | -151451 |
| 6sealed | 371 | Belia, Daniel Jay (1466) | Lost 1-2 | -181433 |
| top | average opponent: 1518record: 2-4 | new rating: 1433 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 34 | Croese, Connor (1500) | Won 2-0 | +181518 |
| 2sealed | 120 | Huang, David (1481) | Lost 1-2 | -191499 |
| 3sealed | 256 | Loi, Brendan (1501) | Won 2-0 | +181517 |
| 4sealed | 144 | Carson, Matt (1486) | Lost 0-2 | -181499 |
| 5sealed | 240 | Britt, Matthew (1444) | Won 2-1 | +171516 |
| 6sealed | 167 | Watson, Brendan (1500) | Lost 0-2 | -181498 |
| 7sealed | 182 | Huang, Leo (1486) | Lost 0-2 | -191479 |
| 8sealed | 156 | Fujimoto, Takashi (1515) | Lost 0-2 | -171462 |
| top | average opponent: 1489record: 3-5 | new rating: 1462 | ||