Roeder, Karl A
Current rating: 1495
Record: 8-9-1
| Grand Prix Kansas City 2011 (NPH limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 1 | Cioffi, Alex (1518) | Won 2-1 | +191488 |
| 3sealed | 115 | Landale, Tim (1739) | Won 2-1 | +221510 |
| 4sealed | 114 | Imber, Adam (1519) | Lost 1-2 | -171493 |
| 5sealed | 161 | Wall, Nolan M (1536) | Won 2-1 | +181511 |
| 6sealed | 106 | Petrov, Matt (1522) | Lost 0-2 | -181493 |
| 7sealed | 157 | Klein, Andrew (1564) | Draw 1-1 | +21495 |
| top | average opponent: 1566record: 3-2-1 | new rating: 1495 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 251 | Knipp, Eric (1540) | Won 2-0 | +201486 |
| 3standard | 40 | Bogucki, Woodrow (1484) | Lost 0-2 | -181468 |
| 4standard | 188 | Suber, Wes (1501) | Won 2-1 | +181486 |
| 5standard | 139 | Henry, Clinton (1523) | Lost 1-2 | -171469 |
| top | average opponent: 1512record: 2-2 | new rating: 1469 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 9 | Hernandez, Miguel (1500) | Won 2-0 | +181502 |
| 2extended | 2 | Willis, Matt (1500) | Lost 0-2 | -181484 |
| 3extended | 147 | Yu, Kevin (1500) | Lost 1-2 | -181466 |
| top | average opponent: 1500record: 1-2 | new rating: 1466 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 31 | Heath, Christopher (1497) | Lost 0-2 | -181482 |
| 3block | 218 | Johnston, William (1503) | Won 2-1 | +181500 |
| 4block | 162 | Fuentes, Calosso (1617) | Lost 1-2 | -161484 |
| 5block | 179 | Burrow, Brent (1502) | Won 2-0 | +191503 |
| 6block | 166 | Morris, Ben N (1453) | Lost 1-2 | -191484 |
| top | average opponent: 1514record: 2-3 | new rating: 1484 | ||