Tonkin, Ben
Current rating: 1485
Record: 1-2-1
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 188 | McDonnell, Peter (1445) | Lost 1-2 | -191481 |
| 2sealed | 237 | Erkkila, Erik (1482) | Won 2-0 | +181499 |
| 3sealed | 220 | Fairley, William (1498) | Draw 1-1 | 01499 |
| 4sealed | 193 | Dalliston, Shane (1735) | Lost 0-2 | -141485 |
| average opponent: 1540record: 1-2-1 | new rating: 1485 | |||