Diwell, Barry
Current rating: 1436
Record: 10-17
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 95 | Luo, Ryan (1736) | Lost 0-2 | -131413 |
| 4sealed | 101 | Pirie, James (1570) | Won 2-1 | +211434 |
| 5sealed | 67 | Holland, Brian (1588) | Won 2-0 | +211455 |
| 6sealed | 41 | Robertson, Patty (1888) | Lost 1-2 | -111444 |
| 7sealed | 145 | Plattner, Christopher (1622) | Won 2-1 | +221466 |
| 8sealed | 97 | Sclauzero, Joseph (1734) | Lost 1-2 | -141452 |
| 9sealed | 78 | Graham, Aaron [AUS] (1532) | Lost 0-2 | -161436 |
| top | average opponent: 1667record: 3-4 | new rating: 1436 | ||
| Grand Prix Melbourne 2014 (BNG standard) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 47 | Biaktoputra, Fenito (1538) | Won 2-1 | +191495 |
| 4standard | 44 | Dean, Samual (1518) | Lost 0-2 | -171478 |
| 5standard | 127 | Victory, Alexander (1536) | Lost 1-2 | -171461 |
| 6standard | 196 | Gaylard, David (1483) | Lost 0-2 | -181443 |
| 7standard | 205 | Lee, Wan Chin (1484) | Lost 0-2 | -171426 |
| top | average opponent: 1512record: 1-4 | new rating: 1426 | ||
| Grand Prix Melbourne 2012 (DKA limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 51 | Lee, Charles (1639) | Won 2-1 | +201504 |
| 5sealed | 8 | Matthews, Tony (1502) | Lost 1-2 | -181486 |
| 6sealed | 44 | Meseguer, Fernando (1537) | Won 2-1 | +191505 |
| 7sealed | 27 | Hart, Jacob (1858) | Lost 0-2 | -121493 |
| 8sealed | 58 | Robb, Justin (1538) | Lost 0-2 | -171476 |
| top | average opponent: 1615record: 2-3 | new rating: 1476 | ||
| Grand Prix Sydney 2010 (SOM limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 16 | Ruz, Carl (1500) | Lost 1-2 | -171472 |
| 5sealed | 31 | McDonald, Iain (1539) | Won 2-1 | +191491 |
| 6sealed | 55 | Henry, Simon (1614) | Won 2-0 | +201511 |
| 7sealed | 36 | Nicastri, Aaron (1697) | Lost 0-2 | -151496 |
| 8sealed | 35 | Cheung, Justin (1783) | Lost 1-2 | -121484 |
| top | average opponent: 1627record: 2-3 | new rating: 1484 | ||
| Grand Prix Melbourne 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 56 | Guan, Boney (1557) | Won 2-1 | +191519 |
| 5sealed | 1 | Nicastri, Aaron (1805) | Lost 0-2 | -131506 |
| 6sealed | 54 | Blackbourne, Daniel (1553) | Lost 0-2 | -171489 |
| 7sealed | 84 | Ninnes, Jeremy S (1466) | Lost 0-2 | -181471 |
| 8sealed | 79 | Hernandez, Alfonso (1519) | Won 2-0 | +181489 |
| top | average opponent: 1580record: 2-3 | new rating: 1489 | ||