Heyn, Charles
Current rating: 1412
Record: 1-6
| Grand Prix Detroit 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 54 | Boggemes, Stephen (1534) | Lost 0-2 | -171483 |
| 2sealed | 176 | Hawley, Nathan (1482) | Won 2-0 | +181501 |
| 3sealed | 149 | Macnaughton, Craig (1597) | Lost 0-2 | -171484 |
| 4sealed | 198 | bible, chuck (1483) | Lost 0-2 | -181466 |
| 5sealed | 181 | Cole, Ed (1467) | Lost 0-2 | -181448 |
| 6sealed | 157 | Bauer, Kevin (1446) | Lost 0-2 | -181430 |
| 7sealed | 125 | Roehler, Allison (1411) | Lost 0-2 | -181412 |
| average opponent: 1489record: 1-6 | new rating: 1412 | |||