Gumbley, Paul
Current rating: 1480
Record: 17-18-2
| Grand Prix Brisbane 2019 (ELD standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 30 | Kirby, Cheyanne (1500) | Won 2-0 | +181535 |
| 2standard | 82 | Ditchfield, Kane (1518) | Lost 0-2 | -191516 |
| 3standard | 132 | Beard, Samuel (1500) | Lost 1-2 | -181498 |
| 4standard | 151 | Waters, Brenton (1482) | Lost 1-2 | -181480 |
| top | average opponent: 1500record: 1-3 | new rating: 1480 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 319 | Belcher, David (1500) | Lost 1-2 | -181472 |
| 2sealed | 245 | Xie, Hanfei (1482) | Won 2-0 | +191491 |
| 3sealed | 242 | Wayne, Tanya (1500) | Won 2-0 | +181509 |
| 4sealed | 127 | Garnham, Matthew (1584) | Won 2-0 | +191528 |
| 5sealed | 113 | Chen, David (1532) | Won 2-1 | +181546 |
| 6sealed | 78 | Andjelkovic, Mase (1504) | Lost 1-2 | -191527 |
| 7sealed | 81 | Wood, Ian (1815) | Won 2-1 | +241551 |
| 8sealed | 54 | Dang, David (1775) | Lost 0-2 | -141537 |
| 9sealed | 106 | Lennon, Scott (1454) | Lost 0-2 | -201517 |
| top | average opponent: 1572record: 5-4 | new rating: 1517 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 330 | Feng, Tony (1635) | Lost 1-2 | -161528 |
| 2sealed | 21 | Hallett, Anthony (1395) | Lost 1-2 | -201508 |
| 3sealed | 375 | Smith, Hayden (1542) | Lost 0-2 | -181490 |
| top | average opponent: 1524record: 0-3 | new rating: 1490 | ||
| Grand Prix Auckland 2012 (RTR standard) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 51 | Stratford, Dion (1497) | Lost 0-2 | -191548 |
| 2standard | 103 | McMahon, Luke (1482) | Draw 1-1 | -21546 |
| 3standard | 90 | McCabe, Joel (1500) | Won 2-0 | +181564 |
| 4standard | 83 | Willis, Michael (1500) | Lost 0-2 | -201544 |
| top | average opponent: 1495record: 1-2-1 | new rating: 1544 | ||
| Grand Prix Singapore 2011 (NPH standard) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 144 | Ng, Clarence (1500) | Won 2-1 | +181552 |
| 2standard | 32 | Layson, Paul (1593) | Lost 1-2 | -181534 |
| 3standard | 148 | Hong, tian yuan (1437) | Won 2-1 | +171551 |
| 4standard | 178 | Wong, Kenneth (1506) | Won 2-0 | +171568 |
| 5standard | 104 | Seah, Danny (1590) | Lost 1-2 | -181550 |
| 6standard | 185 | Tay, Edward (1487) | Lost 1-2 | -191531 |
| 7standard | 176 | Plaskos, David (1538) | Won 2-1 | +181549 |
| 8standard | 121 | Li, Maxwell (1518) | Draw 1-1 | 01549 |
| 9standard | 109 | Boonsiri, Toon (1563) | Won 2-0 | +181567 |
| top | average opponent: 1526record: 5-3-1 | new rating: 1567 | ||
| Grand Prix Sydney 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Brown, Daniel J (1463) | Won 2-1 | +171517 |
| 2sealed | 75 | Rouse, Alex (1518) | Won 2-0 | +181535 |
| 3sealed | 44 | Unwin, Daniel (1433) | Lost 1-2 | -201515 |
| 4sealed | 66 | Wong, Minga (1500) | Won 2-1 | +181533 |
| 5sealed | 66 | Richards, Scott (1658) | Lost 1-2 | -161517 |
| 6sealed | 71 | Liu, Robert (1516) | Won 2-1 | +181535 |
| 7sealed | 58 | Chung, Sam (1549) | Won 2-1 | +191554 |
| 8sealed | 62 | Hare, Matthew (1476) | Lost 0-2 | -201534 |
| top | average opponent: 1514record: 5-3 | new rating: 1534 | ||