Collard, David G
Current rating: 1393
Record: 1-7
| Grand Prix London 2015 (ORI standard) | starting rating: 1425 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 601 | Slater, Darren (1517) | Lost 0-2 | -161409 |
| 2standard | 986 | Taylor, Marc (1482) | Won 2-0 | +191428 |
| 3standard | 832 | Fried, Jake (1427) | Lost 0-2 | -181410 |
| 4standard | 960 | Powles, Simon R (1484) | Lost 0-2 | -171393 |
| average opponent: 1477record: 1-3 | new rating: 1393 | |||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 150 | Morais, Fabio Daniel (1447) | Lost 0-2 | -191481 |
| 2sealed | 789 | Cataliotti, Julien (1381) | Lost 1-2 | -201461 |
| 3sealed | 819 | Brothwell, Seth (1468) | Lost 1-2 | -181443 |
| 4sealed | 916 | De Brabander, Michael (1428) | Lost 1-2 | -181425 |
| average opponent: 1431record: 0-4 | new rating: 1425 | |||