Shaffer, Katherine
Current rating: 1446
Record: 1-4
| Grand Prix Minneapolis 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 88 | Whitlock, Lee (1500) | Won 2-1 | +181518 |
| 2block | 8 | Schafer, Chris (1500) | Lost 0-2 | -181500 |
| 3block | 63 | Chelberg, Jeffrey (1500) | Lost 1-2 | -181482 |
| 4block | 135 | Walters, James (1481) | Lost 0-2 | -181464 |
| 5block | 157 | Brown, Jake (1464) | Lost 1-2 | -181446 |
| average opponent: 1489record: 1-4 | new rating: 1446 | |||