Kong, Jeffrey
Current rating: 1424
| Grand Prix Melbourne 2018 (GRN limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 113 | Hee, Chung Wye (1682) | Lost 1-2 | -141458 |
| 4sealed | 131 | Fielke, Brad (1469) | Lost 1-2 | -181440 |
| 5sealed | 200 | Wilson, Aarron (1512) | Lost 0-2 | -161424 |
| top | average opponent: 1554record: 0-3 | new rating: 1424 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 228 | Woodward, Warren (1698) | Lost 0-1 | -141467 |
| 2sealed | 312 | Hume, Sean (1463) | Won 2-1 | +181485 |
| 3sealed | 341 | Danz, Jonathan (1672) | Lost 0-2 | -151470 |
| 4sealed | 869 | Rode-Bramanis, Jonathon (1488) | Won 2-1 | +181488 |
| 5sealed | 301 | Chong, Paul (1450) | Won 2-0 | +181506 |
| 6sealed | 301 | Hoskin, Daniel (1557) | Lost 0-2 | -171489 |
| 7sealed | 308 | Wynberg, Jacob (1588) | Lost 1-2 | -171472 |
| top | average opponent: 1559record: 3-4 | new rating: 1472 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Jacobi-Sutton, Kyal (1500) | Lost 0-2 | -181482 |
| 2sealed | 334 | Smith, Niall (1416) | Lost 0-2 | -191463 |
| 3sealed | 463 | De Blasio, Adam (1463) | Won 2-1 | +181481 |
| top | average opponent: 1460record: 1-2 | new rating: 1481 | ||