DiMatteo, Joseph
Current rating: 1535
Record: 5-3-1
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 170 | Warner, Lonny (1500) | Lost 1-2 | -181482 |
| 2modern | 1095 | McGowan, Mark (1484) | Won 2-1 | +181500 |
| 3modern | 670 | Parker, Jon (1521) | Won 2-0 | +181518 |
| 4modern | 544 | Veckov, Zachary (1517) | Lost 1-2 | -181500 |
| 5modern | 676 | Vazquez, Josh (1468) | Draw 1-1 | 01500 |
| 6modern | 765 | Danis, Chris 2 (1483) | Lost 0-2 | -191481 |
| 7modern | 722 | Gaffner, Randall (1482) | Won 2-0 | +191500 |
| 8modern | 525 | Massak, Eric (1485) | Won 2-0 | +171517 |
| 9modern | 388 | Brown, Chase (1502) | Won 2-0 | +181535 |
| average opponent: 1494record: 5-3-1 | new rating: 1535 | |||