Karatheodoris, John
Current rating: 1480
Record: 2-3
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 32 | Boyd, Khaatim (1434) | Lost 1-2 | -191481 |
| 2standard | 302 | Harwood, Loni (1482) | Won 2-0 | +181499 |
| 3standard | 216 | Rubin, Jonathan (1482) | Lost 1-2 | -181481 |
| 4standard | 339 | Shafer, Clayton (1454) | Won 2-0 | +171498 |
| 5standard | 257 | Truong, Long (1522) | Lost 1-2 | -181480 |
| average opponent: 1475record: 2-3 | new rating: 1480 | |||