Boroski, Derrick
Current rating: 1482
Record: 2-3
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 312 | Froiland, Dave (1441) | Lost 1-2 | -191481 |
| 3sealed | 452 | Cataliotti, Julien (1401) | Won 2-0 | +161497 |
| 4sealed | 550 | Withers, Mark (1476) | Won 2-1 | +181515 |
| 5sealed | 202 | Warnock, Alan (1683) | Lost 0-2 | -151500 |
| 6sealed | 376 | Piovan, Jerome (1484) | Lost 0-2 | -181482 |
| average opponent: 1497record: 2-3 | new rating: 1482 | |||