Foster, Karl
Current rating: 1485
| Grand Prix Sydney 2019 (RNA limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 79 | Vogelman, Jonah (1500) | Won 2-0 | +181481 |
| 2sealed | 80 | Fallon, Andrew (1468) | Won 2-1 | +181499 |
| 3sealed | 16 | Giudes, Matthew (1538) | Won 2-1 | +191518 |
| 4sealed | 27 | Wilks, James (1648) | Won 2-1 | +201538 |
| 5sealed | 5 | Gibbons, Joel (1504) | Lost 0-2 | -181520 |
| 6sealed | 31 | McErlain, Troy (1472) | Lost 1-2 | -191501 |
| 7sealed | 85 | Mac, Collin (1598) | Lost 0-2 | -161485 |
| top | average opponent: 1533record: 4-3 | new rating: 1485 | ||
| Grand Prix Melbourne 2018 (GRN limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 129 | Horman, Chris (1412) | Won 2-0 | +171498 |
| 2sealed | 112 | Phelan, Thomas (1504) | Lost 0-2 | -181480 |
| 3sealed | 223 | Bradley, Christopher (1506) | Lost 0-2 | -171463 |
| top | average opponent: 1474record: 1-2 | new rating: 1463 | ||
| Grand Prix Melbourne 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Everitt, Paul (1465) | Draw 1-1 | -11499 |
| 2sealed | 38 | Cornford, David (1516) | Won 2-0 | +191518 |
| 3sealed | 28 | Van Der Werk, Paul (1501) | Lost 0-2 | -191499 |
| 4sealed | 63 | Koay, Teng Wei (1500) | Lost 0-2 | -181481 |
| top | average opponent: 1496record: 1-2-1 | new rating: 1481 | ||