Jillson, Joseph
Current rating: 1419
| Grand Prix Omaha 2015 (modern) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 181 | Gurevich, Misha (1628) | Lost 0-2 | -151435 |
| 2modern | 299 | Nower, Curtis (1515) | Lost 1-2 | -161419 |
| top | average opponent: 1572record: 0-2 | new rating: 1419 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 14 | Legler, Tad (1551) | Lost 1-2 | -171465 |
| 3sealed | 276 | Elliott, Vincent W (1499) | Won 2-1 | +191484 |
| 4sealed | 164 | French, Shawn (1566) | Lost 0-2 | -171467 |
| 5sealed | 246 | Walling, Richard (1500) | Lost 0-2 | -171450 |
| top | average opponent: 1529record: 1-3 | new rating: 1450 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 81 | Silva, Cory (1500) | Won 2-0 | +181518 |
| 2block | 11 | Cordell, Mark (1518) | Lost 0-2 | -181500 |
| 3block | 172 | Reliford, Brett (1498) | Won 2-0 | +181518 |
| 4block | 98 | Wallen, Derek (1518) | Lost 1-2 | -181500 |
| 5block | 152 | Baker, Thomas (1500) | Won 2-1 | +181518 |
| 6block | 83 | Lieu, Andrew (1517) | Lost 1-2 | -181500 |
| 7block | 117 | Irvine, David (1501) | Lost 1-2 | -181482 |
| top | average opponent: 1507record: 3-4 | new rating: 1482 | ||