Duff, Stuart
Current rating: 1450
Record: 4-7
| Grand Prix Brisbane 2004 (COK limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 13 | Petersen, Colin [AUS] (1553) | Lost 0-2 | -171464 |
| 5sealed | 27 | Chen, Cameron (1520) | Won 2-1 | +191483 |
| 6sealed | 29 | Lightfoot, Anatoli (1617) | Lost 0-2 | -151468 |
| 7sealed | 48 | Denz, John (1504) | Lost 0-2 | -181450 |
| average opponent: 1548record: 1-3 | new rating: 1450 | |||
| Grand Prix Brisbane 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Beddoes-Eagles, Charles (1500) | Won 2-0 | +181518 |
| 2sealed | 10 | Stoddart, Thomas (1452) | Lost 0-2 | -191499 |
| 3sealed | 59 | Shepperd, Craig (1500) | Won 2-0 | +181517 |
| 4sealed | 39 | Allan, Peter (1518) | Lost 1-2 | -181499 |
| 5sealed | 60 | Whale, Timothy (1499) | Won 2-0 | +181517 |
| 6sealed | 44 | Trevilyan, Bryce (1531) | Lost 0-2 | -181499 |
| 7sealed | 61 | Cornford, David (1498) | Lost 0-2 | -181481 |
| average opponent: 1500record: 3-4 | new rating: 1481 | |||