Cornford, David
Current rating: 1453
Record: 19-21-5
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 350 | Sturiale, Giuseppe (1500) | Draw 1-1 | 01469 |
| 2sealed | 238 | Chua, Jeremy (1518) | Lost 0-2 | -171452 |
| 3sealed | 392 | Choe, Jason (1482) | Won 2-0 | +191471 |
| 4sealed | 284 | Darragh, Michael (1472) | Lost 0-2 | -181453 |
| top | average opponent: 1493record: 1-2-1 | new rating: 1453 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 267 | Burns, David (1500) | Won 2-1 | +191503 |
| 2sealed | 10 | Abdullah, Zakaria (1464) | Draw 1-1 | -11502 |
| 3sealed | 94 | Pirie, Andrew (1574) | Lost 0-2 | -171485 |
| 4sealed | 200 | Butler, David (1539) | Won 2-1 | +191504 |
| 5sealed | 191 | Dorling, Stephen (1500) | Lost 0-2 | -181486 |
| 6sealed | 185 | ABrook, Aaron (1500) | Won 2-0 | +181504 |
| 7sealed | 134 | Glaser, Karl (1503) | Lost 1-2 | -181486 |
| 8sealed | 44 | Mckay, Peter (1496) | Lost 0-2 | -171469 |
| top | average opponent: 1510record: 3-4-1 | new rating: 1469 | ||
| Grand Prix Sydney 2006 (TSP limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 55 | Cassey, Stephen (1500) | Lost 0-2 | -191500 |
| 2sealed | 71 | Ly, Boung (1578) | Lost 1-2 | -161484 |
| 3sealed | 82 | Fong, Gerard (1520) | Draw 1-1 | 01484 |
| top | average opponent: 1532record: 0-2-1 | new rating: 1484 | ||
| Grand Prix Brisbane 2004 (COK limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 36 | Burrowes, Alex (1499) | Won 2-0 | +181522 |
| 3sealed | 18 | Restel, Sven (1396) | Draw 1-1 | -21520 |
| 4sealed | 45 | Crewe, David (1479) | Won 2-1 | +171537 |
| 5sealed | 24 | Stevenson, Martin (1521) | Won 2-0 | +181555 |
| 6sealed | 13 | Whitby, Jason (1553) | Lost 0-2 | -181537 |
| 7sealed | 28 | Aitchison, Christopher (1544) | Lost 0-2 | -181519 |
| top | average opponent: 1499record: 3-2-1 | new rating: 1519 | ||
| Grand Prix Sydney 2003 (MRD limited) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 56 | Davie, Matt (1500) | Lost 1-2 | -181525 |
| 2sealed | 87 | Bath, Darren (1482) | Lost 0-2 | -191506 |
| 3sealed | 99 | Bruckner, James (1446) | Won 2-1 | +171523 |
| 4sealed | 124 | Cheong, Justin (1483) | Lost 0-2 | -191504 |
| top | average opponent: 1478record: 1-3 | new rating: 1504 | ||
| Grand Prix Melbourne 2002 (ONS rochester) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Koay, Teng Wei (1500) | Draw 1-1 | 01516 |
| 2sealed | 38 | Foster, Karl (1499) | Lost 0-2 | -181498 |
| 3sealed | 59 | Erros, Chiodo (1464) | Won 2-1 | +171515 |
| 4sealed | 62 | Prasetya, Budhi (1519) | Won 2-1 | +181533 |
| 5sealed | 51 | Everitt, Paul (1485) | Won 2-1 | +171550 |
| 6sealed | 34 | Van Der Werk, Paul (1522) | Won 2-0 | +181568 |
| 7sealed | 21 | Fung, Kerry (1523) | Won 2-0 | +171585 |
| 8rochester | 14 | Kissajukian, Sam (1535) | Lost 1-2 | -191566 |
| 9rochester | 24 | Salonen, Miki (1490) | Won 2-0 | +171583 |
| 10rochester | 17 | Lin, Milton Jian Xiong (1582) | Lost 0-2 | -181565 |
| 11rochester | 21 | Grain, Andrew (1521) | Lost 0-2 | -191546 |
| 12rochester | 17 | Russell, Nathan (1480) | Lost 1-2 | -191527 |
| 13rochester | 11 | Bailey, Andrew (1457) | Won 2-0 | +161543 |
| top | average opponent: 1506record: 7-5-1 | new rating: 1543 | ||
| Grand Prix Brisbane 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 7 | Tatchell, Sam (1518) | Won 2-0 | +181518 |
| 2sealed | 18 | Bruce, Bronwyn (1501) | Won 2-0 | +181536 |
| 3sealed | 28 | Johnston, Richard [AUS] (1517) | Lost 0-1 | -181518 |
| 4sealed | 43 | Clifton, Darren (1455) | Lost 1-2 | -191499 |
| 5sealed | 61 | Laycock, James (1501) | Lost 1-2 | -181481 |
| 6sealed | 72 | Nimwegen, Brendan (1465) | Won 2-0 | +171498 |
| 7sealed | 61 | Duff, Stuart (1499) | Won 2-0 | +181516 |
| top | average opponent: 1494record: 4-3 | new rating: 1516 | ||