Kozlowski, Jack
Current rating: 1466
Record: 1-3
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 335 | Hodges, Eric (1500) | Lost 0-2 | -181482 |
| 2standard | 262 | Butler, Jessie (1517) | Lost 0-2 | -171465 |
| 3standard | 419 | Tennant, Randall (1464) | Won 2-1 | +181483 |
| 4standard | 328 | Winn, Tyler (1559) | Lost 0-2 | -171466 |
| average opponent: 1510record: 1-3 | new rating: 1466 | |||