Petersen, Jeff
Current rating: 1484
Record: 5-6
| Grand Prix Vancouver 2012 (AVR limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 281 | Connolly, Sean (1465) | Won 2-1 | +181520 |
| 2sealed | 173 | SVENDSEN, TYSON c (1518) | Won 2-0 | +181538 |
| 3sealed | 69 | Griffith, Sky (1550) | Lost 1-2 | -181520 |
| 4sealed | 205 | Fleck, Casey (1517) | Lost 1-2 | -181502 |
| 5sealed | 252 | Fontaine, Yannick (1501) | Lost 0-2 | -181484 |
| average opponent: 1510record: 2-3 | new rating: 1484 | |||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 216 | Archer, Aaron B (1500) | Lost 1-2 | -181482 |
| 2sealed | 488 | Pavelchak, Drew (1482) | Lost 1-2 | -181464 |
| 3sealed | 561 | Jennings, Zach (1464) | Won 2-0 | +181482 |
| 5sealed | 351 | Hedges, Andrew (1500) | Won 2-0 | +181500 |
| 6sealed | 210 | Brown, Adam (1520) | Won 2-0 | +191519 |
| 7sealed | 227 | Kovacs, Bryan J (1605) | Lost 0-2 | -171502 |
| average opponent: 1512record: 3-3 | new rating: 1502 | |||