Koller, Katherine
Current rating: 1480
Record: 2-3
| Grand Prix Oakland 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 197 | Vaughn, Michael (1500) | Lost 1-2 | -181482 |
| 2extended | 232 | Gold, Sean (1482) | Lost 0-2 | -181464 |
| 3extended | 316 | Henry, Patrick (1478) | Won 2-1 | +181482 |
| 4extended | 290 | Campbell, Kevin (1448) | Won 2-0 | +181500 |
| 5extended | 218 | Cook, Brennen (1385) | Lost 1-2 | -201480 |
| average opponent: 1459record: 2-3 | new rating: 1480 | |||