Layfield, JJ
Current rating: 1536
Record: 16-14-1
| Grand Prix Brisbane 2013 (modern) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 97 | Mersky, Barnet (1500) | Won 2-1 | +181515 |
| 2modern | 107 | Southward, Jaith (1484) | Lost 1-2 | -181497 |
| 3modern | 160 | Ophel, Lewis (1518) | Draw 1-1 | 01497 |
| 4modern | 148 | Pham, Matthew [AUS] (1484) | Won 2-0 | +181515 |
| 5modern | 96 | Fitzpatrick, Tom (1518) | Won 2-1 | +181533 |
| 6modern | 63 | Zhang, James (1714) | Lost 1-2 | -151518 |
| 7modern | 98 | Poon, Jin Kiat (1488) | Won 2-1 | +181536 |
| top | average opponent: 1529record: 4-2-1 | new rating: 1536 | ||
| Grand Prix Melbourne 2012 (DKA limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 102 | Roseburgh, Duncan (1500) | Won 2-0 | +181535 |
| 3sealed | 6 | Haddy, Tom (1577) | Lost 0-2 | -181517 |
| 4sealed | 130 | Okada, Kantaro (1529) | Lost 0-2 | -171500 |
| 5sealed | 153 | Chan, Kwok Hung (1491) | Lost 1-2 | -191481 |
| 6sealed | 196 | Lake, Daniel (1446) | Won 2-0 | +181499 |
| 7sealed | 141 | Eyre, Shayne (1409) | Lost 0-2 | -201479 |
| 8sealed | 147 | Templeton, Aaron (1488) | Won 2-0 | +181497 |
| top | average opponent: 1491record: 3-4 | new rating: 1497 | ||
| Grand Prix Kuala Lumpur 2012 (DKA standard) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 114 | Kae Shiuh, Kai (1500) | Won 2-1 | +181514 |
| 2standard | 42 | Sirimanne, Barry (1433) | Won 2-0 | +171531 |
| 3standard | 43 | Sung, Terence S (1524) | Won 2-0 | +181549 |
| 4standard | 86 | Chen, Bryan (1644) | Lost 1-2 | -161533 |
| 5standard | 73 | Hee, Wern Jin (1535) | Lost 0-1 | -181515 |
| 6standard | 172 | Madin, Azrin (1504) | Lost 0-2 | -191496 |
| 7standard | 167 | Jen, Chien-Ming (1632) | Lost 0-2 | -151481 |
| 8standard | 183 | Yong, Yeong Chow (1482) | Won 1-0 | +181499 |
| 9standard | 149 | Tan, Kai Sern (1498) | Won 2-1 | +181517 |
| top | average opponent: 1528record: 5-4 | new rating: 1517 | ||
| Grand Prix Brisbane 2011 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 18 | Haley, Ben (1500) | Won 2-1 | +181518 |
| 2standard | 47 | Puku, Jeremy (1500) | Lost 1-2 | -181500 |
| 3standard | 62 | Butler, Sharmaine (1499) | Won 2-0 | +181518 |
| 4standard | 77 | King, Graham (1500) | Lost 0-0 | -191499 |
| 5standard | 97 | Lee, Marcus Bing Sian (1453) | Won 2-1 | +181517 |
| 6standard | 82 | Deze, Al (1521) | Won 2-1 | +181535 |
| 7standard | 42 | Chapman, Craig (1413) | Lost 1-2 | -211514 |
| 8standard | 74 | Lauder, Stuart (1516) | Lost 0-2 | -181496 |
| top | average opponent: 1488record: 4-4 | new rating: 1496 | ||