Mackerill, Ben
Current rating: 1576
Record: 15-12-1
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 376 | Locke, Patrick (1496) | Lost 0-2 | -211596 |
| 2sealed | 391 | Hakulija, Edis (1483) | Lost 1-2 | -201576 |
| top | average opponent: 1489record: 0-2 | new rating: 1576 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1492 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 218 | Chung, Claude (1500) | Won 2-0 | +181510 |
| 2sealed | 132 | Flora, Tim (1532) | Lost 0-2 | -171493 |
| 3sealed | 221 | Smitheram, Alan (1486) | Won 2-0 | +181511 |
| 4sealed | 118 | Cai, Guo Chen (1520) | Won 2-1 | +181529 |
| 5sealed | 142 | Ophel, John (1537) | Won 2-1 | +181547 |
| 6sealed | 23 | Grinbergs, Jason (1555) | Won 2-1 | +181565 |
| 7sealed | 12 | Richards, Darian (1498) | Won 2-0 | +171582 |
| 8sealed | 27 | Hart, Jacob (1984) | Won 2-0 | +251607 |
| 9sealed | 10 | Bandas, Jim (1770) | Lost 0-2 | -151592 |
| 10draft | 8 | Mimura, Haruki (1601) | Lost 0-2 | -181574 |
| 12draft | 28 | Grinbergs, Jason (1597) | Won 2-1 | +181592 |
| 13draft | 15 | Sclauzero, Joseph (1781) | Won 2-1 | +221614 |
| 14draft | 29 | Nguyen, Kenny [AUS] (1646) | Won 2-1 | +181632 |
| 15draft | 23 | Bandas, Jim (1749) | Lost 1-2 | -151617 |
| top | average opponent: 1625record: 10-4 | new rating: 1617 | ||
| Grand Prix Brisbane 2013 (modern) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 139 | [anonymous] | Won 2-1 | +171491 |
| 2modern | 48 | Fitzpatrick, Tom (1518) | Draw 1-1 | +11492 |
| 3modern | 98 | Nugent, Bowie (1518) | Lost 1-2 | -181474 |
| 4modern | 150 | Hall, Ashley (1483) | Won 2-0 | +181492 |
| top | average opponent: 1492record: 2-1-1 | new rating: 1492 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Lu, Zhiyuan (1500) | Won 2-0 | +191506 |
| 2sealed | 113 | Hardy, Phillip (1518) | Lost 0-2 | -181488 |
| 3sealed | 235 | Aplin, Steven (1697) | Lost 0-2 | -141474 |
| top | average opponent: 1572record: 1-2 | new rating: 1474 | ||
| Grand Prix Melbourne 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 38 | Saunders, Lachlan (1516) | Won 2-0 | +181518 |
| 3sealed | 31 | Wright, Dale (1543) | Lost 0-2 | -171501 |
| 4sealed | 116 | Koller, Tobias (1742) | Lost 1-2 | -141487 |
| 5sealed | 147 | Cohen, Michael (1495) | Won 2-0 | +181505 |
| 6sealed | 89 | Balev, Grigory (1519) | Lost 0-2 | -181487 |
| top | average opponent: 1563record: 2-3 | new rating: 1487 | ||