Jackness, Justin
Current rating: 1595
Record: 16-12-1
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 40 | Smart, Thomas (1572) | Lost 0-2 | -181598 |
| 3sealed | 108 | Miller, Kyle (1465) | Won 2-0 | +151613 |
| 4sealed | 131 | Westfall, Matthew (1621) | Lost 1-2 | -181595 |
| top | average opponent: 1553record: 1-2 | new rating: 1595 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 65 | Newsome, Jeremiah (1518) | Lost 0-2 | -191550 |
| 3block | 173 | Hansen, Tim (1501) | Lost 1-2 | -191531 |
| 4block | 193 | Parker, Percey (1482) | Won 2-0 | +171548 |
| 5block | 143 | Colleran, Edwin (1482) | Won 2-0 | +171565 |
| 6block | 78 | Tan, Yong (1534) | Won 2-1 | +171582 |
| 7block | 59 | Drew, Raymond (1534) | Won 2-0 | +171599 |
| 8block | 32 | Hines, Stephen R (1553) | Won 2-0 | +171616 |
| top | average opponent: 1515record: 5-2 | new rating: 1616 | ||
| Grand Prix Atlanta 2003 (8ED standard) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 130 | Carey, Joey (1476) | Won 2-0 | +171530 |
| 3standard | 92 | Willis, Daniel (1518) | Won 2-0 | +181548 |
| 4standard | 28 | Cormier, William (1500) | Won 2-1 | +171565 |
| 5standard | 16 | Nassif, Gabriel (2096) | Won 2-1 | +271592 |
| 6standard | 16 | Ostrovich, Diego (1996) | Won 2-0 | +251617 |
| 7standard | 5 | Coffey, Evan (1586) | Draw 1-1 | -11616 |
| 8standard | 5 | Mowshowitz, Zvi (1974) | Lost 1-2 | -121604 |
| 9standard | 22 | Leggate, Philip (1591) | Won 2-1 | +181622 |
| 10standard | 13 | Mahon, John (1623) | Lost 1-2 | -181604 |
| 11standard | 18 | Hoaen, Rich (1653) | Lost 1-2 | -171587 |
| 12standard | 22 | Rose, Jason (1561) | Lost 0-2 | -181569 |
| top | average opponent: 1689record: 6-4-1 | new rating: 1569 | ||
| Grand Prix Tampa Bay 2002 (TOR limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 18 | Mercier, Bryan (1556) | Won 2-0 | +191518 |
| 5sealed | 28 | De Rosa, Antonino (1982) | Lost 0-2 | -101508 |
| 6sealed | 61 | Cooper, Matt (1565) | Lost 0-2 | -171491 |
| 7sealed | 73 | O'Mahoney-Schwartz, Daniel (1689) | Won 2-1 | +221513 |
| top | average opponent: 1698record: 2-2 | new rating: 1513 | ||
| Grand Prix Atlanta 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2 | Grimmer, Brian (1483) | Lost 0-2 | -181482 |
| 2sealed | 104 | Sisson, Max (1482) | Won 2-1 | +181500 |
| 3sealed | 93 | Charubini, David (1500) | Won 2-1 | +181518 |
| 4sealed | 93 | Rhodes, Brooks (1486) | Lost 0-2 | -191499 |
| top | average opponent: 1488record: 2-2 | new rating: 1499 | ||