Campbell, Mattezhion
Current rating: 1387
Record: 12-20-1
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Watson, Nicholas (1556) | Lost 1-2 | -151419 |
| 2sealed | 248 | Parker, Trent (1481) | Won 2-1 | +191438 |
| 3sealed | 364 | Padberg, Oliver (1503) | Lost 0-2 | -171421 |
| 4sealed | 386 | Reismanis, Scott (1481) | Lost 0-2 | -171404 |
| 5sealed | 401 | Pollard, Luke (1470) | Lost 0-2 | -171387 |
| top | average opponent: 1498record: 1-4 | new rating: 1387 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 30 | Roffey, Benjamin (1555) | Lost 0-2 | -161439 |
| 4sealed | 259 | Ruddy, Thomas (1517) | Won 2-1 | +191458 |
| 5sealed | 54 | Chung, Jason (2009) | Lost 0-2 | -81450 |
| 6sealed | 170 | Carter, Nick (1603) | Lost 0-2 | -161434 |
| top | average opponent: 1671record: 1-3 | new rating: 1434 | ||
| Grand Prix Auckland 2015 (FRF limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 62 | Casswell-Laird, Oscar (1484) | Lost 0-2 | -171452 |
| 2sealed | 110 | O'Keefe, Samuel (1437) | Lost 0-2 | -191433 |
| 3sealed | 183 | Gordon, Hamish (1582) | Won 2-1 | +211454 |
| 4sealed | 137 | Hackney, Connor (1483) | Lost 0-2 | -171437 |
| 5sealed | 145 | Metcalf, Simon (1465) | Won 2-0 | +181455 |
| 6sealed | 117 | LU, XU (1483) | Won 2-0 | +191474 |
| 7sealed | 104 | Hollman, Christopher (1450) | Lost 1-2 | -191455 |
| top | average opponent: 1484record: 3-4 | new rating: 1455 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 75 | Byron, Leo (1481) | Lost 0-2 | -181486 |
| 2sealed | 253 | Eldred, Rhett (1521) | Lost 0-2 | -181468 |
| 3sealed | 361 | Brown, Sam [AUS] (1464) | Won 2-0 | +181486 |
| 4sealed | 244 | Yaocheng, Mark (1583) | Lost 1-2 | -161470 |
| 5sealed | 282 | Hur, Jun (1448) | Lost 1-2 | -181452 |
| 6sealed | 261 | Lau, Michael (1434) | Won 2-0 | +171469 |
| 7sealed | 214 | Simmonds, Matthew (1480) | Draw 1-1 | 01469 |
| 8sealed | 184 | Cortina, Benjamin II (1461) | Won 2-1 | +181487 |
| 9sealed | 149 | Cross, Aaron (1489) | Lost 1-2 | -181469 |
| top | average opponent: 1484record: 3-5-1 | new rating: 1469 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Warren, Connor (1500) | Won 2-0 | +181518 |
| 2sealed | 72 | Connelly-Hansen, Allan (1552) | Lost 1-2 | -171501 |
| 3sealed | 176 | Lao, Wayne L (1520) | Won 2-0 | +181519 |
| 4sealed | 188 | Sainty, Daniel (1517) | Lost 0-2 | -181501 |
| 5sealed | 181 | Villanueva, Dean (1416) | Won 2-0 | +161517 |
| 6sealed | 152 | Lioznov, Michael (1525) | Won 2-0 | +191536 |
| 7sealed | 64 | Rayner, Hugh (1812) | Lost 1-2 | -141522 |
| 8sealed | 106 | Wilks, James (1502) | Lost 1-2 | -181504 |
| top | average opponent: 1543record: 4-4 | new rating: 1504 | ||