Wiechert, Stefan
Current rating: 1542
Record: 18-15-2
| Grand Prix Liverpool 2017 (XLN limited) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 113 | Szuplewski, Michael (1500) | Won 2-0 | +161602 |
| 2sealed | 154 | Laub, Brian (1567) | Lost 1-2 | -181584 |
| 3sealed | 458 | Higgs, Philip (1446) | Won 2-0 | +151599 |
| 4sealed | 222 | Giroud, Pierre (1641) | Lost 0-2 | -171582 |
| 5sealed | 285 | Pattenden, Andrew (1446) | Lost 1-2 | -201562 |
| 6sealed | 383 | Davis, Jake (1485) | Lost 0-2 | -201542 |
| top | average opponent: 1514record: 2-4 | new rating: 1542 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 764 | Greil, Alexander (1499) | Won 2-0 | +171573 |
| 2sealed | 622 | Pashley, Stephen (1451) | Won 2-0 | +151588 |
| 3sealed | 620 | Vanek, Tomas (1657) | Lost 1-2 | -161572 |
| 4sealed | 642 | Christakopoulos, Chris (1485) | Won 2-0 | +161588 |
| 5sealed | 685 | Gorenflot, Sylvain (1489) | Won 2-0 | +161604 |
| 6sealed | 557 | Delis, Achilles (1567) | Draw 1-1 | 01604 |
| 7sealed | 580 | Simon, Swen (1622) | Lost 1-2 | -181586 |
| top | average opponent: 1539record: 4-2-1 | new rating: 1586 | ||
| Grand Prix Athens 2006 (TSP limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Mourikis, Orestis (1469) | Won 2-1 | +171530 |
| 2sealed | 47 | Munoz, Luis (1558) | Lost 1-2 | -181512 |
| 3sealed | 105 | Margaritis, Marios (1499) | Lost 0-2 | -181494 |
| 4sealed | 193 | Kontizas, Nick (1482) | Won 2-0 | +181512 |
| 5sealed | 155 | Kiritsis, Nikos (1502) | Won 2-1 | +181530 |
| 6sealed | 88 | Ioannidis, Andreas (1502) | Won 2-0 | +171547 |
| 7sealed | 99 | Hagen, Steffen (1554) | Won 2-0 | +181565 |
| 8sealed | 49 | Martin, Quentin (2058) | Lost 1-2 | -91556 |
| top | average opponent: 1578record: 5-3 | new rating: 1556 | ||
| Grand Prix Gothenburg 2003 (MRD limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 120 | Schutte, Soren (1431) | Won 2-1 | +161554 |
| 2sealed | 107 | Pettersson, Jimmy (1500) | Lost 0-2 | -191535 |
| 3sealed | 149 | McNamara, Daniel [NOR] (1500) | Won 2-0 | +171552 |
| 4sealed | 72 | Vindoy, Audun (1471) | Draw 1-1 | -11551 |
| 5sealed | 109 | Liberg, Joakim (1518) | Lost 0-2 | -191532 |
| 6sealed | 131 | Larsson, Simon (1502) | Lost 0-2 | -181514 |
| 7sealed | 127 | Lundin, Martin (1484) | Lost 1-2 | -191495 |
| 8sealed | 105 | Andersen, Morten (1469) | Won 2-0 | +181513 |
| top | average opponent: 1484record: 3-4-1 | new rating: 1513 | ||
| Grand Prix Heidelberg 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Mayer, Michael (1595) | Won 2-0 | +201520 |
| 2sealed | 193 | Schulze, Heiko (1519) | Won 2-0 | +181538 |
| 3sealed | 82 | Silny, Andre (1536) | Lost 0-2 | -181520 |
| 4sealed | 204 | Mueller, Stefan (1501) | Lost 0-2 | -191501 |
| 5sealed | 199 | Caminada, Julien (1501) | Won 2-0 | +181519 |
| 6sealed | 168 | Pigeon, Pierre (1550) | Won 2-0 | +191538 |
| top | average opponent: 1534record: 4-2 | new rating: 1538 | ||