Dunham, Donald
Current rating: 1456
Record: 12-18
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 17 | Siu, Brian (1639) | Won 2-0 | +211464 |
| 5extended | 20 | Cordell, Kenneth (1557) | Lost 0-2 | -161448 |
| 6extended | 124 | Larson, Aaron (1555) | Lost 1-2 | -161432 |
| 7extended | 99 | Franson, Alex (1471) | Won 2-0 | +191451 |
| 8extended | 116 | Leclaire, Matthew (1558) | Won 2-0 | +191470 |
| 9extended | 65 | Ashman, Benji (1672) | Lost 1-2 | -141456 |
| top | average opponent: 1575record: 3-3 | new rating: 1456 | ||
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 130 | Huang, Don (1634) | Lost 0-2 | -151457 |
| 4sealed | 124 | Keulmann, Nicholas (1515) | Won 2-0 | +191476 |
| 5sealed | 184 | David-Marshall, Brian (1559) | Lost 1-2 | -161460 |
| 6sealed | 244 | Connor, Taylor P (1517) | Lost 1-2 | -171443 |
| top | average opponent: 1556record: 1-3 | new rating: 1443 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1416 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 25 | Babin, Jean-Marc (1634) | Won 2-0 | +221438 |
| 5sealed | 14 | De Rosa, Antonino (1961) | Lost 1-2 | -91429 |
| 6sealed | 39 | Ting-A-Kee, Andrew (1537) | Lost 1-2 | -161413 |
| 7sealed | 62 | Day, Kyle C (1543) | Won 2-1 | +201433 |
| 8sealed | 34 | Berrill, Eugene (1543) | Won 2-1 | +201453 |
| 9draft | 28 | Bailly, Henri (1509) | Won 2-1 | +191472 |
| 10draft | 10 | Jonsson, Anton (1936) | Lost 0-2 | -101462 |
| 11draft | 25 | Kowal, Brian (1555) | Won 2-0 | +201482 |
| 12draft | 21 | Smith, Kyle T (1551) | Won 2-0 | +191501 |
| 13draft | 17 | McGregor, Duncan (1687) | Lost 0-2 | -151486 |
| 14draft | 19 | Mechler, Kyle (1701) | Lost 1-2 | -141472 |
| top | average opponent: 1651record: 6-5 | new rating: 1472 | ||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 55 | Kyle, Rex (1500) | Lost 0-2 | -171433 |
| 2legacy | 168 | Endress, Mat (1481) | Lost 0-2 | -171416 |
| top | average opponent: 1490record: 0-2 | new rating: 1416 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 188 | bingham, nathan (1500) | Lost 0-2 | -171448 |
| 2extended | 220 | Ortiz, Julian (1482) | Won 2-1 | +181466 |
| 3extended | 255 | Wechsler, Simon (1489) | Won 2-1 | +191485 |
| 4extended | 126 | Fischer, Nathan (1543) | Lost 0-2 | -171468 |
| 5extended | 188 | Durling, Austin (1500) | Lost 1-2 | -181450 |
| top | average opponent: 1503record: 2-3 | new rating: 1450 | ||
| Grand Prix Boston 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 37 | Qian, Patrick (1551) | Lost 1-2 | -171483 |
| 2sealed | 179 | Walker, Shaun (1482) | Lost 1-2 | -181465 |
| top | average opponent: 1516record: 0-2 | new rating: 1465 | ||