Jackett, John R
Current rating: 1457
Record: 3-6
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1115 | Glidewell, Larry R (1428) | Lost 1-2 | -181436 |
| 2sealed | 1066 | Trumbull, Philip (1481) | Lost 1-2 | -181418 |
| 3sealed | 1186 | Friel, Steven (1464) | Won 2-0 | +191437 |
| 4sealed | 1169 | Johnson, Matthew (1457) | Won 2-1 | +191456 |
| 5sealed | 950 | Byrd, Eric (1514) | Won 2-1 | +191475 |
| 6sealed | 868 | Prathumratana, Mike (1488) | Lost 1-2 | -181457 |
| average opponent: 1472record: 3-3 | new rating: 1457 | |||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 1 | Daley, Joshua (1592) | Lost 0-2 | -161484 |
| 5standard | 84 | Scott, Stephen (1702) | Lost 0-2 | -141470 |
| 6standard | 196 | Iglesias, John (1606) | Lost 0-2 | -161454 |
| average opponent: 1633record: 0-3 | new rating: 1454 | |||