Van Kalker, Zeke
Current rating: 1532
Record: 17-17
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 31 | Wang, Guan (1524) | Lost 1-2 | -181520 |
| 5sealed | 95 | Jarvis, Peter (1601) | Won 2-1 | +191539 |
| 6sealed | 42 | Goodhew-Plaza, Warrick (1594) | Won 2-0 | +191558 |
| 7sealed | 46 | Connelly-Hansen, Allan (1606) | Won 2-1 | +191577 |
| 8sealed | 27 | Gould, Rhys (1767) | Lost 1-2 | -151562 |
| 9draft | 39 | Jiang, Xi (1626) | Won 0-0 | +201582 |
| 10draft | 9 | Neeman, Jeremy (2064) | Lost 1-2 | -101572 |
| 11draft | 33 | van Sickle, Joseph (1406) | Lost 1-2 | -211551 |
| 12draft | 1 | Sha, Chris (1536) | Lost 0-2 | -191532 |
| top | average opponent: 1636record: 4-5 | new rating: 1532 | ||
| Grand Prix Melbourne 2009 (ZEN limited) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 44 | Piotto, Joel (1511) | Lost 0-2 | -191540 |
| 4sealed | 83 | Dang, Jacky (1519) | Won 2-0 | +181558 |
| 5sealed | 44 | Gray, Scott (1518) | Lost 0-2 | -191539 |
| 6sealed | 65 | Amy, Adam (1518) | Won 2-1 | +181557 |
| 7sealed | 78 | rampertshammer, stefan (1506) | Lost 1-2 | -191538 |
| top | average opponent: 1515record: 2-3 | new rating: 1538 | ||
| Grand Prix Brisbane 2007 (LRW limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 1 | Plinston, Andrew (1427) | Lost 1-2 | -191458 |
| 5sealed | 41 | Pirie, James (1529) | Won 2-1 | +191477 |
| 6sealed | 11 | Nonneman, Jesse (1545) | Won 2-1 | +201497 |
| 7sealed | 21 | Lamb, Matthew (1635) | Won 2-0 | +201517 |
| 8draft | 11 | Le Montagner, Mathieu (1739) | Won 0-0 | +221539 |
| 9draft | 19 | Macpherson, Norman (1554) | Won 2-1 | +181557 |
| 10draft | 4 | Crewe, David (1640) | Lost 0-2 | -161541 |
| 11draft | 23 | Rayner, Hugh (1536) | Won 0-0 | +181559 |
| 12draft | 3 | Macpherson, Norman (1580) | Lost 1-2 | -181541 |
| 13draft | 14 | Mann, Simeon (1547) | Won 0-0 | +181559 |
| top | average opponent: 1573record: 7-3 | new rating: 1559 | ||
| Grand Prix Sydney 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 3 | Mitchell, Jared L (1555) | Won 2-0 | +191519 |
| 5sealed | 16 | McKay, Daniel (1519) | Lost 1-2 | -181501 |
| 6sealed | 30 | Koh, Charles (1535) | Lost 1-2 | -171484 |
| 7sealed | 43 | Bandas, Jim (1621) | Won 2-0 | +201504 |
| 8draft | 6 | He, Timothy L (1845) | Lost 0-2 | -121492 |
| 9draft | 20 | Haddy, Tom (1472) | Lost 0-2 | -181474 |
| 10draft | 29 | Sadeq, Jafar (1510) | Lost 0-2 | -181456 |
| 11draft | 3 | Brown, Jared J (1485) | Won 2-1 | +191475 |
| 12draft | 1 | Sadeq, Jafar (1510) | Won 2-0 | +191494 |
| 13draft | 14 | Crewe, David (1567) | Lost 1-2 | -171477 |
| top | average opponent: 1562record: 4-6 | new rating: 1477 | ||