Preston, Nick
Current rating: 1469
Record: 5-7
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 186 | Loterbauer, Jakob (1481) | Won 2-0 | +181497 |
| 2sealed | 105 | Candelario, Derek (1762) | Lost 0-2 | -131484 |
| 3sealed | 354 | Whitehurst, Clinton (1662) | Won 2-1 | +211505 |
| 4sealed | 251 | Pacheco, Marcus (1366) | Lost 1-2 | -201485 |
| 5sealed | 348 | Gaxiola, Joshua (1632) | Lost 0-2 | -161469 |
| average opponent: 1581record: 2-3 | new rating: 1469 | |||
| Grand Prix Sydney 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 31 | Sammut, Kerry (1500) | Won 2-1 | +181518 |
| 2extended | 20 | Heterick, Craig (1518) | Lost 0-2 | -181500 |
| 3extended | 40 | George, Benjamin (1482) | Won 2-0 | +181518 |
| 4extended | 60 | Mircev, Christo (1518) | Won 2-1 | +181536 |
| 5extended | 23 | Sawkins, Dominic (1483) | Lost 0-2 | -191517 |
| 6extended | 47 | Schaumkell, Jeremy (1437) | Lost 0-2 | -201497 |
| 7extended | 56 | Brumby, Gene (1499) | Lost 0-2 | -181479 |
| average opponent: 1491record: 3-4 | new rating: 1479 | |||