Castillo, Rico
Current rating: 1463
Record: 1-3
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 679 | Helton, Elizabeth (1500) | Lost 1-2 | -181482 |
| 2standard | 866 | Scott, Richard (1482) | Won 2-0 | +181500 |
| 3standard | 843 | VanDinter, Nathan (1482) | Lost 1-2 | -181482 |
| 4standard | 938 | Tremblay, Mathew (1449) | Lost 0-2 | -191463 |
| average opponent: 1478record: 1-3 | new rating: 1463 | |||