Zweifel, Josh J
Current rating: 1446
Record: 0-3
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 225 | Herron, Josh (1500) | Lost 1-2 | -181482 |
| 2modern | 181 | BOLEN, SHAUN M (1482) | Lost 0-0 | -181464 |
| 4modern | 181 | Ullmann, Collin (1488) | Lost 1-2 | -181446 |
| average opponent: 1490record: 0-3 | new rating: 1446 | |||