Cox, Jonathan
Current rating: 1394
Record: 0-6
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Chapman, Steven (1464) | Lost 1-2 | -171429 |
| 2sealed | 294 | Smith, Justin (1446) | Lost 0-2 | -181411 |
| 3sealed | 418 | Velasquez, Luis A (1464) | Lost 1-2 | -171394 |
| average opponent: 1458record: 0-3 | new rating: 1394 | |||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 263 | Villareal, Gilbert (1500) | Lost 1-2 | -181482 |
| 2standard | 351 | Diaz, Albert (1507) | Lost 1-2 | -181464 |
| 3standard | 434 | Kruse, Chris J (1462) | Lost 0-2 | -181446 |
| average opponent: 1490record: 0-3 | new rating: 1446 | |||