Jackson, Matthew
Current rating: 1468
Record: 4-6
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Mathews, Keith (1535) | Lost 1-2 | -161446 |
| 2sealed | 215 | Batarlis, Chris (1482) | Won 2-1 | +181464 |
| 3sealed | 180 | Langer, Brian (1501) | Won 2-1 | +191483 |
| 4sealed | 138 | Huberty, Henry (1501) | Lost 1-2 | -181465 |
| 5sealed | 257 | Simoneau, Danny R (1518) | Won 2-0 | +191484 |
| 6sealed | 155 | Beasley, Orrin (1570) | Lost 1-2 | -161468 |
| average opponent: 1518record: 3-3 | new rating: 1468 | |||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 1 | Witherell, Randal (1445) | Won 2-0 | +171517 |
| 2block | 106 | Nagy, Stephen (1481) | Lost 0-2 | -191498 |
| 3block | 165 | Fairfield, Jeffrey (1500) | Lost 0-2 | -181480 |
| 4block | 307 | Franzek, Matthew (1482) | Lost 0-2 | -181462 |
| average opponent: 1477record: 1-3 | new rating: 1462 | |||