Dettman, Rob
Current rating: 1493
Record: 10-12
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1437 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 129 | Conyers, Melvin (1500) | Won 2-1 | +191456 |
| 3sealed | 30 | Pardo, Alex V (1551) | Won 2-1 | +191475 |
| 4sealed | 24 | Postiglione, Sal (1537) | Won 2-1 | +201495 |
| 5sealed | 39 | dos Santos Vieira, Eduardo (1639) | Won 2-1 | +201515 |
| 6sealed | 22 | Ochoa, David (1952) | Lost 0-2 | -101505 |
| 7sealed | 29 | Weixler, Cliff (1596) | Lost 0-2 | -171488 |
| 8sealed | 78 | Nieves, Gabriel (1496) | Won 2-0 | +181506 |
| 9sealed | 49 | Casatti, Vagner William (1778) | Lost 1-2 | -131493 |
| top | average opponent: 1631record: 5-3 | new rating: 1493 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 466 | Knox, Joshua L (1534) | Lost 0-2 | -171453 |
| 3sealed | 590 | Soucie, Dustin (1433) | Lost 0-2 | -181435 |
| 4sealed | 633 | Pacheco, James D (1482) | Won 2-0 | +191454 |
| 5sealed | 578 | Greenleaf, Paul (1503) | Lost 0-2 | -171437 |
| top | average opponent: 1488record: 1-3 | new rating: 1437 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 25 | Wilson, Anthony (1458) | Won 2-0 | +171522 |
| 4extended | 82 | Phillips, Tj (1500) | Lost 0-2 | -191503 |
| 5extended | 122 | Blystone, Jeff (1488) | Lost 1-2 | -181485 |
| 7extended | 113 | Ketita, Nassim (1643) | Lost 0-2 | -151470 |
| top | average opponent: 1522record: 1-3 | new rating: 1470 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Krakower, Gary (1739) | Lost 0-2 | -141486 |
| 2sealed | 206 | Magnan, Patrick (1485) | Lost 0-2 | -181468 |
| 3sealed | 194 | Badawi, Chris (1464) | Won 2-0 | +181486 |
| 4sealed | 205 | Schunk, Jason (1537) | Won 2-1 | +191505 |
| 5sealed | 131 | Cariati, Tony (1501) | Won 2-0 | +181523 |
| 6sealed | 97 | Cheng, Julian J (1502) | Lost 0-2 | -181505 |
| top | average opponent: 1538record: 3-3 | new rating: 1505 | ||