Penfold, Aaron
Current rating: 1415
Record: 3-8-1
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Reynolds, Nicholas (1474) | Lost 0-2 | -181448 |
| 2sealed | 366 | Bowen, Steven (1473) | Lost 0-2 | -181430 |
| 3sealed | 373 | Orliner, Eric (1564) | Lost 1-2 | -151415 |
| top | average opponent: 1503record: 0-3 | new rating: 1415 | ||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 119 | Mcpherson, Blake D (1500) | Won 2-0 | +181502 |
| 2sealed | 108 | Mike M., (1518) | Lost 1-2 | -181484 |
| 3sealed | 181 | Gorman, Vivian (1458) | Lost 1-2 | -181466 |
| 4sealed | 194 | Maus, Brian (1432) | Won 2-0 | +171483 |
| 5sealed | 164 | Azhar, Ben (1500) | Lost 1-2 | -171466 |
| top | average opponent: 1481record: 2-3 | new rating: 1466 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 296 | Horton, Ken (1500) | Won 2-0 | +181518 |
| 2standard | 77 | Rue, Charlie (1600) | Draw 1-1 | +11519 |
| 3standard | 173 | Kaufmann, Loran (1517) | Lost 1-2 | -181501 |
| 4standard | 376 | Phipps, Joseph d (1523) | Lost 0-2 | -171484 |
| top | average opponent: 1535record: 1-2-1 | new rating: 1484 | ||