Macdonald, Dave
Current rating: 1473
Record: 6-8
| Grand Prix Vancouver 2012 (AVR limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Grywacheski, Chris (1466) | Won 2-0 | +191465 |
| 2sealed | 91 | Newhook, Cam (1539) | Lost 1-2 | -171448 |
| 3sealed | 283 | Rossine, Paulo (1444) | Lost 0-2 | -181430 |
| 4sealed | 270 | Sigouin, Dustin (1481) | Won 2-0 | +191449 |
| 5sealed | 306 | Clark, Ryan (1517) | Won 2-1 | +191468 |
| 6sealed | 151 | jewlal, vince a (1517) | Won 2-1 | +191487 |
| 7sealed | 101 | Lew, Michael (1687) | Lost 0-2 | -141473 |
| average opponent: 1521record: 4-3 | new rating: 1473 | |||
| Grand Prix Seattle 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 46 | Dorman, Rayman (1500) | Won 0-0 | +181518 |
| 2extended | 61 | Rider, Justin (1534) | Lost 0-0 | -181500 |
| 3extended | 74 | Shear, Dan (1500) | Lost 0-0 | -181482 |
| 4extended | 106 | Green, Kevin (1482) | Lost 0-0 | -181464 |
| 5extended | 122 | Dunkin, Janelle (1465) | Lost 0-0 | -181446 |
| 6extended | 114 | Green, Mike (1446) | Won 0-0 | +181464 |
| 7extended | 96 | Pooni, Raj (1463) | Lost 0-0 | -181446 |
| average opponent: 1484record: 2-5 | new rating: 1446 | |||