Tong, John
Current rating: 1503
Record: 6-6-2
| Grand Prix Brisbane 2007 (LRW limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 62 | Caley, Dan (1538) | Draw 1-1 | +11483 |
| 2sealed | 59 | Douglas, Kalan (1500) | Won 2-0 | +181501 |
| 3sealed | 37 | Grainger, Brian (1518) | Lost 1-2 | -171484 |
| 4sealed | 82 | O'Brien, Nathan S (1500) | Lost 0-2 | -181466 |
| 5sealed | 89 | Willeston, Andrew E (1481) | Won 2-0 | +181484 |
| 6sealed | 69 | Rooke, Dan (1517) | Draw 1-1 | +11485 |
| 7sealed | 72 | Solomon, Luke (1484) | Won 2-0 | +181503 |
| average opponent: 1506record: 3-2-2 | new rating: 1503 | |||
| Grand Prix Brisbane 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | McPherson, Scott (1500) | Won 2-0 | +181518 |
| 2sealed | 28 | Chen, Cameron (1499) | Lost 0-2 | -181500 |
| 3sealed | 38 | Karc, Robert (1541) | Won 2-1 | +181518 |
| 4sealed | 76 | Anderson, Lee (1517) | Lost 0-2 | -181500 |
| 5sealed | 84 | Downs, Samuel (1499) | Lost 0-2 | -181482 |
| 6sealed | 91 | Petty, Scott (1482) | Won 2-1 | +181500 |
| 7sealed | 75 | Pickering, Peter (1487) | Lost 0-2 | -181482 |
| average opponent: 1504record: 3-4 | new rating: 1482 | |||