Zachmann, Dustin
Current rating: 1429
Record: 2-6
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 800 | Setlow, Craig (1500) | Lost 1-2 | -181463 |
| 2standard | 962 | Proudfoot, Stuart W (1517) | Lost 1-2 | -171446 |
| 3standard | 971 | Kandeh, Amara (1464) | Lost 0-2 | -171429 |
| average opponent: 1494record: 0-3 | new rating: 1429 | |||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 592 | Ahlersmeyer, Tad (1500) | Lost 0-2 | -181482 |
| 2sealed | 704 | Kaviar, Brian (1482) | Won 2-1 | +181500 |
| 3sealed | 616 | Wilson, Shawn (1499) | Won 2-1 | +181518 |
| 4sealed | 613 | Howland, Stephen (1518) | Lost 0-2 | -181500 |
| 5sealed | 567 | Lugiano, Chris (1441) | Lost 0-2 | -191481 |
| average opponent: 1488record: 2-3 | new rating: 1481 | |||