Rettberg, Carlin
Current rating: 1499
Record: 7-8-1
| Grand Prix Detroit 2016 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 272 | Parsons, Robert (1500) | Won 2-0 | +181483 |
| 2modern | 358 | Herberholz, Mark (1951) | Lost 0-2 | -101473 |
| 3modern | 631 | Moisan, Tony (1530) | Won 2-0 | +191492 |
| 4modern | 533 | Lynch, John (1530) | Won 2-1 | +191511 |
| 5modern | 232 | Shuttleworth, Scott (1531) | Won 2-1 | +181529 |
| 6modern | 234 | Crawford, Jonathan (1552) | Lost 0-2 | -171512 |
| 7modern | 462 | DuPont, Jeffrey (1812) | Lost 0-2 | -131499 |
| 8modern | 406 | Bono, Mike (1480) | Won 2-1 | +181517 |
| 9modern | 299 | Boland, Ray (1534) | Lost 0-2 | -181499 |
| average opponent: 1602record: 5-4 | new rating: 1499 | |||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 299 | Rose, Vince (1500) | Won 2-1 | +181518 |
| 2modern | 144 | Kopp, Robert (1516) | Lost 0-0 | -181500 |
| 3modern | 407 | Pasqualetti, Joey (1504) | Won 2-0 | +181518 |
| 4modern | 252 | Stewart, Shawn (1446) | Lost 0-1 | -191499 |
| 5modern | 501 | Rodriguez III, Miguel (1502) | Draw 1-1 | 01499 |
| 6modern | 441 | Zobel, Nicholas (1500) | Lost 0-2 | -181481 |
| 7modern | 437 | Norton, Matt M (1576) | Lost 0-0 | -161465 |
| average opponent: 1506record: 2-4-1 | new rating: 1465 | |||