Zimmerli, Ben
Current rating: 1414
Record: 1-6
| Grand Prix Kansas City 2011 (NPH limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 115 | Henderson, Josh (1506) | Lost 0-2 | -171429 |
| 2sealed | 335 | Ernst, Robert D (1483) | Won 2-1 | +191448 |
| 3sealed | 197 | Pratt-Hyatt, Matthew J (1500) | Lost 1-2 | -171431 |
| 4sealed | 339 | Bunting, Gage (1482) | Lost 1-2 | -171414 |
| average opponent: 1493record: 1-3 | new rating: 1414 | |||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Davis, Christopher S (1503) | Lost 0-2 | -181482 |
| 2sealed | 285 | Erickson, Shannon (1484) | Lost 1-2 | -181464 |
| 3sealed | 316 | Strange, Randy W (1463) | Lost 0-2 | -181446 |
| average opponent: 1483record: 0-3 | new rating: 1446 | |||