Shaffer, Robert
Current rating: 1431
Record: 1-5
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 713 | Schieferstein, Brett (1499) | Lost 0-2 | -171449 |
| 2sealed | 953 | Anderson, Jonathan (1481) | Lost 0-2 | -171432 |
| 3sealed | 485 | Binsky, Joshua (1370) | Won 2-1 | +161448 |
| 4sealed | 456 | Carr, Harrison (1482) | Lost 0-0 | -171431 |
| average opponent: 1458record: 1-3 | new rating: 1431 | |||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 183 | Cleberg, Thomas (1636) | Lost 0-2 | -161484 |
| 2standard | 367 | Petty, Sean (1482) | Lost 1-2 | -181466 |
| average opponent: 1559record: 0-2 | new rating: 1466 | |||