Duewel-Zahniser, Eric
Current rating: 1525
Record: 7-6-1
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 83 | Jackson, Kellen (1500) | Won 0-0 | +191480 |
| 2extended | 52 | Pannell, Thomas (1574) | Draw 0-0 | +21482 |
| 3extended | 89 | Allen, Chris (1537) | Won 0-0 | +191501 |
| 4extended | 66 | Wolfman, Steven (1594) | Won 0-0 | +201521 |
| 5extended | 32 | Taylor, Eric (1528) | Won 0-0 | +181539 |
| 6extended | 16 | Joyce, Brian (1559) | Lost 0-0 | -181521 |
| 7extended | 45 | Douglass, Morgan (1552) | Won 0-0 | +191540 |
| 8extended | 27 | DeRoche, Chris (1629) | Won 0-0 | +191559 |
| 9extended | 14 | Bush, Michelle (1571) | Lost 0-0 | -181541 |
| 10extended | 25 | Regnier, Shawn (1620) | Lost 0-0 | -161525 |
| average opponent: 1566record: 6-3-1 | new rating: 1525 | |||
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 76 | Krejci, Jacob (1482) | Lost 0-0 | -181482 |
| 2sealed | 133 | Cores, Ari (1482) | Won 0-0 | +181500 |
| 3sealed | 150 | Lynch, Brian (1457) | Lost 0-0 | -191481 |
| 4sealed | 166 | Greenspan, Jonathan (1399) | Lost 0-0 | -201461 |
| average opponent: 1455record: 1-3 | new rating: 1461 | |||