Mason, Peter
Current rating: 1387
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 129 | Gulliver, Kayne (1500) | Lost 0-2 | -171422 |
| 2sealed | 356 | Pham, Matthew [AUS] (1430) | Lost 1-2 | -181404 |
| 3sealed | 357 | Calcroft, CJ (1449) | Lost 1-2 | -171387 |
| top | average opponent: 1460record: 0-3 | new rating: 1387 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 80 | Buzzi, Oliver (1429) | Won 2-1 | +171484 |
| 2sealed | 105 | Seck, Ben (1784) | Lost 1-2 | -131471 |
| 3sealed | 188 | Copus, Ben (1395) | Lost 0-2 | -191452 |
| 4sealed | 214 | Sawyer, Andrew (1481) | Won 2-0 | +191471 |
| 5sealed | 137 | Dunn, Jacob (1509) | Lost 1-2 | -181453 |
| 6sealed | 192 | Barclay, Allan (1635) | Lost 1-2 | -141439 |
| top | average opponent: 1539record: 2-4 | new rating: 1439 | ||
| Grand Prix Sydney 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Ferguson, Alexander (1500) | Lost 0-2 | -181482 |
| 2sealed | 120 | Wong, Raymond (1482) | Won 2-1 | +181500 |
| 3sealed | 70 | Zhang, Jacky (1648) | Lost 0-2 | -151485 |
| 4sealed | 172 | Fantigrossi, Giuseppe (1493) | Lost 0-2 | -181467 |
| top | average opponent: 1531record: 1-3 | new rating: 1467 | ||