Zwettler, Andreas
Current rating: 1522
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 130 | Leitgeb, Vladimir (1500) | Won 2-0 | +181519 |
| 2sealed | 106 | Holland, Jan (1608) | Lost 1-2 | -161503 |
| 3sealed | 121 | Jerabek, Petr (1501) | Won 2-0 | +181521 |
| 4sealed | 72 | Morarescu, Dan (1518) | Won 2-0 | +181539 |
| 5sealed | 57 | Summersberger, Helmut (1649) | Lost 1-2 | -161523 |
| 6sealed | 137 | Ceska, Pavel (1520) | Lost 0-2 | -181505 |
| 7sealed | 135 | Kotesovec, Karel (1498) | Draw 1-1 | -11504 |
| 8sealed | 137 | Suveges, Andras (1455) | Won 2-1 | +181522 |
| top | average opponent: 1531record: 4-3-1 | new rating: 1522 | ||
| Grand Prix Amsterdam 2001 (INV limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Moerland, Pascal (1500) | Won 2-1 | +181499 |
| 2sealed | 108 | Philippczyk, Bjorn (1500) | Lost 1-2 | -181481 |
| 3sealed | 138 | Kroon, Niels (1500) | Won 2-0 | +191500 |
| 4sealed | 154 | van den Broek, Victor (1623) | Lost 0-2 | -161484 |
| 5sealed | 218 | Skjetne, Endre Helgesen (1416) | Won 2-0 | +171501 |
| 6sealed | 139 | Becker, Axel (1505) | Lost 0-2 | -181483 |
| 7sealed | 161 | Steger, Mario (1484) | Won 2-1 | +181501 |
| 8sealed | 118 | Niedrig, Jonathan (1520) | Draw 1-1 | 01501 |
| top | average opponent: 1506record: 4-3-1 | new rating: 1501 | ||
| Grand Prix Vienna 1999 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 39 | Persoh, Derek (1500) | Won 0-0 | +181518 |
| 2extended | 2 | Navratil, Martin (1518) | Draw 0-0 | 01518 |
| 3extended | 59 | Navratil, Miroslav (1518) | Lost 0-0 | -181500 |
| 4extended | 109 | Karaszewski, Pawel (1419) | Lost 0-0 | -191481 |
| 5extended | 127 | Liptak, Karoly (1481) | Won 0-0 | +181499 |
| 6extended | 42 | Okon, Ales (1518) | Lost 0-0 | -181481 |
| top | average opponent: 1492record: 2-3-1 | new rating: 1481 | ||