Sittinger, David
Current rating: 1483
Record: 5-6
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 758 | Hall, Nicholas (1499) | Lost 1-2 | -181463 |
| 2modern | 829 | Rapp, Nicholas (1607) | Won 2-0 | +211484 |
| 3modern | 674 | Utterback, Raymond (1447) | Won 2-0 | +171501 |
| 4modern | 559 | Rudolph, Doyle (1518) | Won 2-1 | +191520 |
| 5modern | 357 | Coover, Tyler (1415) | Lost 1-2 | -201500 |
| 6modern | 501 | Petrilli, Trevor (1566) | Lost 0-2 | -171483 |
| average opponent: 1509record: 3-3 | new rating: 1483 | |||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 86 | Bovill, Andrew (1462) | Lost 1-2 | -191481 |
| 2sealed | 415 | Kauffman, Joshua (1482) | Lost 1-2 | -181463 |
| 3sealed | 609 | Bravo, Jose (1445) | Lost 0-2 | -181445 |
| 4sealed | 608 | Gelillo, Daniel (1445) | Won 2-1 | +181463 |
| 5sealed | 535 | Backof, Peter (1462) | Won 2-0 | +181481 |
| average opponent: 1459record: 2-3 | new rating: 1481 | |||