Piela, Ben
Current rating: 1428
Record: 6-11
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 108 | Palmer, Keith (1523) | Lost 0-2 | -161423 |
| 2standard | 603 | Morey, David (1482) | Won 2-0 | +191442 |
| 3standard | 450 | Benns, Brian (1536) | Won 2-1 | +201462 |
| 4standard | 422 | Ritter, Brian (1517) | Lost 0-2 | -171445 |
| 5standard | 598 | Lafon, Julien (1504) | Lost 0-2 | -171428 |
| top | average opponent: 1512record: 2-3 | new rating: 1428 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 441 | McElhany jr, Robert (1500) | Won 2-0 | +191468 |
| 2sealed | 112 | Efland, Zach (1729) | Won 2-0 | +231491 |
| 3sealed | 20 | Pietrowski Jr, John (1518) | Lost 1-2 | -181473 |
| 4sealed | 541 | Smithline, Jared (1539) | Lost 1-2 | -171456 |
| 5sealed | 593 | Radzwilla, Michael (1499) | Lost 0-2 | -171439 |
| top | average opponent: 1557record: 2-3 | new rating: 1439 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 196 | Digiacomo, Anthony J (1540) | Won 2-0 | +191521 |
| 2sealed | 12 | Croes, Ben (1499) | Lost 1-2 | -191502 |
| 3sealed | 285 | Coons, Kyle (1558) | Lost 1-2 | -171485 |
| 4sealed | 300 | Shea, Don (1482) | Lost 1-2 | -181467 |
| 5sealed | 277 | Lees, Jason (1464) | Lost 1-2 | -181449 |
| top | average opponent: 1509record: 1-4 | new rating: 1449 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 142 | Hatab, Blaine (1500) | Won 2-0 | +181518 |
| 2block | 203 | Holland, Jan (1628) | Lost 0-2 | -161502 |
| top | average opponent: 1564record: 1-1 | new rating: 1502 | ||