Jackman, Cory M
Current rating: 1469
Record: 4-6
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 124 | Fukala, Dalibor (1592) | Won 2-0 | +211484 |
| 2sealed | 52 | Winkler, Eric (1480) | Lost 1-2 | -181466 |
| 3sealed | 144 | Toth, Jakub (1565) | Won 2-1 | +191485 |
| 4sealed | 134 | Kwiatkowski, Maciej (1524) | Lost 0-2 | -171468 |
| 5sealed | 182 | Duignan, Thomas M (1548) | Lost 0-1 | -161452 |
| 6sealed | 193 | Kubiszyn, Michael Misi (1446) | Won 2-0 | +171469 |
| average opponent: 1526record: 3-3 | new rating: 1469 | |||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Johnson, Morgan (1481) | Won 2-0 | +181518 |
| 2sealed | 215 | Nguyen, Thanh (1516) | Lost 0-2 | -181500 |
| 3sealed | 383 | Paulson, Lars (1500) | Lost 0-2 | -181482 |
| 4sealed | 490 | Foley, Ethan (1465) | Lost 0-2 | -191463 |
| average opponent: 1490record: 1-3 | new rating: 1463 | |||