Macdonald, Jeffrey A
Current rating: 1493
Record: 2-3
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 72 | Cestare, Fox (1500) | Lost 1-2 | -181482 |
| 2standard | 312 | Tomlinson, Justin (1482) | Won 2-0 | +181500 |
| 3standard | 203 | Lepore, Frank (1530) | Won 2-1 | +191519 |
| 4standard | 176 | Fabiano, Gerard (1917) | Lost 1-2 | -121507 |
| 5standard | 315 | Chernoff, Adam (1688) | Lost 1-2 | -141493 |
| average opponent: 1623record: 2-3 | new rating: 1493 | |||