Kaczmarczyk, David
Current rating: 1464
Record: 2-4
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 219 | Hoel, Jeremy (1500) | Lost 1-2 | -181482 |
| 2modern | 470 | Holness, Trevor (1446) | Lost 0-0 | -191463 |
| 3modern | 598 | Zobel, Nicholas (1464) | Lost 1-2 | -181445 |
| 4modern | 691 | Schneck, Kelly-Ann (1446) | Won 2-0 | +181463 |
| 5modern | 580 | Casey, Austin (1463) | Won 2-0 | +181481 |
| 6modern | 521 | Zubarev, Ilya (1495) | Lost 0-2 | -171464 |
| average opponent: 1469record: 2-4 | new rating: 1464 | |||