Weidemann, Roman
Current rating: 1525
Record: 23-17-3 (GP) / 5-9 (professional)
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 250 | Wolfensberger, Daniel (1515) | Won 2-0 | +171583 |
| 2extended | 10 | Beduzzi, David (1478) | Lost 0-2 | -201563 |
| 3extended | 344 | Fawkes, Anthony (1487) | Lost 1-2 | -191544 |
| 4extended | 364 | Hemmer, Philipp (1483) | Lost 0-2 | -191525 |
| top | average opponent: 1491record: 1-3 | new rating: 1525 | ||
| Pro Tour Venice 2003 (Onslaught block) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 43 | Dougherty, Robert (1910) | Lost 1-2 | -131595 |
| 2block | 86 | Mello, Patrick (1916) | Lost 1-2 | -121583 |
| 3block | 120 | Godinez Estrada, Gerardo (1665) | Lost 0-2 | -171566 |
| top | average opponent: 1830record: 0-3 | new rating: 1566 | ||
| Pro Tour Houston 2002 (extended) | starting rating: 1648 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 78 | Krautmann, Wenzel (1481) | Lost 0-2 | -211627 |
| 2extended | 171 | Chadha, Carlos (1598) | Lost 0-2 | -191608 |
| 3extended | 153 | Horvath, Adam (1578) | Won 2-1 | +181626 |
| 4extended | 146 | Betti, Alessandro (1616) | Lost 0-2 | -181608 |
| top | average opponent: 1568record: 1-3 | new rating: 1608 | ||
| Grand Prix Hamburg 2002 (Odyssey block) | starting rating: 1669 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 48 | Urbanec, Jan (1462) | Lost 0-2 | -221647 |
| 5block | 111 | Nielsen, Brian (1501) | Won 2-1 | +161663 |
| 6block | 81 | Philippczyk, Bjorn (1657) | Won 2-0 | +181681 |
| 7block | 36 | Misonne, Jacques (1592) | Draw 1-1 | -21679 |
| 8block | 37 | Kleist, Keith (1548) | Won 2-1 | +161695 |
| 9block | 28 | Hoelzl, Johannes (1605) | Won 2-1 | +161711 |
| 10block | 5 | Hebisch, Sebastian (1671) | Lost 1-2 | -191692 |
| 11block | 14 | Jensen, Marten (1550) | Won 2-1 | +161708 |
| 12block | 15 | Kroll, Tobias (1599) | Lost 0-2 | -201688 |
| 13block | 20 | Fischer, Sven 2 (1594) | Lost 0-2 | -201668 |
| 14block | 22 | Zarka, Julien (1552) | Lost 0-2 | -201648 |
| top | average opponent: 1576record: 5-5-1 | new rating: 1648 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 51 | Paunku, Aurelijan (1507) | Won 2-0 | +161643 |
| 3sealed | 28 | Unfried, Jorg (1516) | Won 2-1 | +151658 |
| 4sealed | 22 | Bakke, Geir (1408) | Lost 0-2 | -221636 |
| 5sealed | 41 | Van Der Haeghe, Werner (1538) | Won 2-1 | +161652 |
| 6sealed | 56 | Andersson, Mikael (1591) | Won 2-0 | +171669 |
| 7sealed | 29 | Schreurs, Jos (1771) | Lost 0-2 | -161653 |
| 8sealed | 46 | Schwass, Mark (1559) | Won 2-0 | +161669 |
| top | average opponent: 1556record: 5-2 | new rating: 1669 | ||
| Grand Prix Heidelberg 2002 (TOR limited) | starting rating: 1590 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 89 | Teschner, Tobias (1565) | Won 2-0 | +181608 |
| 3sealed | 71 | Ramos Da Fonseca, Dilson (1660) | Won 2-0 | +191627 |
| 4sealed | 14 | Neumann, Alexander (1538) | Draw 1-1 | -21625 |
| 5sealed | 50 | Hajnisz, Aleksander (1632) | Won 2-1 | +181643 |
| 6sealed | 25 | Zink, Daniel (1825) | Lost 0-2 | -141629 |
| 7sealed | 60 | Dickert, Olivier (1590) | Won 2-0 | +171646 |
| 8sealed | 37 | Kittl, Jens (1586) | Lost 0-2 | -191627 |
| top | average opponent: 1628record: 4-2-1 | new rating: 1627 | ||
| Pro Tour San Diego 2002 (ODY rochester) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 165 | Tschirch, Marc (1739) | Lost 0-1 | -141543 |
| 2rochester | 93 | Assen, Johan (1560) | Lost 0-2 | -181525 |
| 3rochester | 121 | Price, David (1726) | Won 2-0 | +221547 |
| 4rochester | 23 | Baberowski, Dirk (1721) | Lost 0-2 | -151532 |
| 5rochester | 50 | Walamies, Tomi (1943) | Won 2-0 | +251557 |
| 6rochester | 67 | Cerasari, Andrea (1519) | Won 2-0 | +171574 |
| 7rochester | 95 | Schamun, Donald (1467) | Won 2-0 | +161590 |
| top | average opponent: 1668record: 4-3 | new rating: 1590 | ||
| Grand Prix Vienna 2001 (ODY limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 12 | Feher, Daniel (1479) | Draw 1-1 | -11537 |
| 2sealed | 180 | Koller, Patrik (1512) | Won 2-0 | +181555 |
| 3sealed | 102 | Gravano, Fabio (1570) | Won 2-0 | +181573 |
| 4sealed | 55 | Brackmann, Aaron (1747) | Lost 0-2 | -151558 |
| 5sealed | 127 | Elekes, Daniel (1522) | Won 2-0 | +181576 |
| 6sealed | 86 | Kohl, Reinhold (1572) | Lost 1-2 | -191557 |
| top | average opponent: 1567record: 3-2-1 | new rating: 1557 | ||
| Grand Prix Cologne 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Nubling, Marc (1554) | Won 1-0 | +191519 |
| 2sealed | 87 | Hubert, Michael (1518) | Won 2-1 | +181537 |
| 3sealed | 64 | Jakobsen, Martin (1580) | Won 2-1 | +191556 |
| 4sealed | 23 | Schulze-Kadelbach, Matthias (1537) | Lost 1-2 | -191537 |
| 5sealed | 48 | Rohde, Karl Heinz (1668) | Won 2-1 | +211558 |
| 6sealed | 19 | van der Velden, Stan (1461) | Lost 1-2 | -201538 |
| 7sealed | 95 | Lowenbruck, Claus (1533) | Won 2-1 | +181556 |
| 8sealed | 32 | Mayer, Michael (1578) | Lost 0-2 | -181538 |
| top | average opponent: 1554record: 5-3 | new rating: 1538 | ||