Merrick, Jeff P
Current rating: 1519
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Cheng, Timothy (1556) | Won 2-0 | +201495 |
| 2sealed | 158 | Zhang, Henry (1518) | Won 2-1 | +181513 |
| 3sealed | 58 | Ball, Daniel (1483) | Lost 0-2 | -181495 |
| 4sealed | 141 | Copus, Ben (1415) | Won 2-0 | +161511 |
| 5sealed | 66 | Thomas, Jayke (1538) | Won 2-1 | +191530 |
| 6sealed | 69 | Horig, Wilfy (1680) | Lost 1-2 | -161514 |
| 7sealed | 130 | Chen, Gary [AUS] (1526) | Won 2-1 | +191533 |
| 8sealed | 90 | Hoskin, Elliot (1553) | Won 2-0 | +181551 |
| 9draft | 13 | Thatcher, Simon (1581) | Lost 0-0 | -171534 |
| 10draft | 28 | Dang, David (1683) | Lost 0-2 | -161518 |
| 11draft | 52 | Neagle, Justin (1543) | Lost 1-2 | -171501 |
| 12draft | 51 | Butlin, Jamie (1525) | Won 2-0 | +181519 |
| 13draft | 43 | Savidis, Michael (1532) | Won 2-1 | +181537 |
| 14draft | 42 | Jones, Edwin (1516) | Lost 0-2 | -181519 |
| top | average opponent: 1546record: 8-6 | new rating: 1519 | ||
| Grand Prix Brisbane 2011 (ISD standard) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 35 | Norton, Mark (1469) | Lost 0-2 | -191474 |
| 2standard | 151 | McLeod, Kobi (1482) | Won 2-1 | +191493 |
| 3standard | 56 | Hanley, Jimmy (1499) | Won 2-0 | +181511 |
| 4standard | 85 | D'Ambrosio, Loren (1671) | Lost 0-0 | -151496 |
| 5standard | 122 | Chapman, Craig (1373) | Lost 1-2 | -211475 |
| top | average opponent: 1499record: 2-3 | new rating: 1475 | ||
| Grand Prix Sydney 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 2 | Kuo, Tzu-Ching (1975) | Won 2-0 | +261526 |
| 5sealed | 6 | Ng, Kar Wye (1558) | Lost 1-2 | -171509 |
| 6sealed | 31 | Scott, Jason (1578) | Lost 1-2 | -171492 |
| 7sealed | 66 | Stensmyr, Peter (1426) | Won 2-0 | +171509 |
| 8sealed | 53 | D'Ambrosio, Loren (1627) | Lost 0-2 | -161493 |
| top | average opponent: 1633record: 2-3 | new rating: 1493 | ||