Dewez, Johan
Current rating: 1663
Record: 28-20-4 (GP) / 9-9 (professional)
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1705 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 101 | Ruzicka, Marek (1599) | Won 2-0 | +161721 |
| 5standard | 23 | McLeod, Lewis (1500) | Lost 1-2 | -221699 |
| 6standard | 112 | Von Der Heyde, Mathias (1492) | Lost 1-2 | -221677 |
| 7standard | 175 | Barbou, Leonard (1877) | Lost 1-2 | -141663 |
| top | average opponent: 1617record: 1-3 | new rating: 1663 | ||
| Grand Prix Brussels 2008 (SHM limited) | starting rating: 1690 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 46 | Steinfort, Philipp (1484) | Won 2-1 | +141704 |
| 3sealed | 19 | Goertzen, Dominik (1501) | Won 2-0 | +141718 |
| 4sealed | 9 | Zijp, Teun (1589) | Lost 0-2 | -201698 |
| 5sealed | 79 | Petreski, Samoil (1604) | Won 2-0 | +161714 |
| 6sealed | 65 | Koller, Tobias (1673) | Won 2-1 | +181732 |
| 7sealed | 22 | Hugues, Jerome (1517) | Won 0-0 | +141746 |
| 8sealed | 33 | Ziesche, Sebastian (1756) | Lost 0-2 | -181728 |
| 9sealed | 42 | Huber, Christoph (1913) | Won 2-1 | +211749 |
| 10draft | 4 | Debordes, Mathieu (1682) | Lost 0-2 | -191730 |
| 11draft | 34 | Perman, Eugen (1647) | Won 2-0 | +171747 |
| 12draft | 10 | Hermann, Manfred (1698) | Lost 1-2 | -191728 |
| 13draft | 26 | Rang, Max (1615) | Lost 0-2 | -201708 |
| 14draft | 9 | Loeb, Davy (1651) | Lost 0-2 | -191689 |
| 15draft | 52 | Fanghaenel, Alex (1580) | Won 2-1 | +161705 |
| top | average opponent: 1636record: 8-6 | new rating: 1705 | ||
| 2006 World Championship (mixed) | starting rating: 1674 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 174 | Bernabe, Julio (1500) | Won 2-0 | +151689 |
| 2standard | 18 | Gerasymenko, Oleksandr (1521) | Lost 1-2 | -211668 |
| 3standard | 80 | Kastle, Darwin (1566) | Won 2-1 | +161684 |
| 4standard | 59 | Nakajima, Chikara (1679) | Won 2-0 | +181702 |
| 5standard | 33 | Vasovski, Michael (1577) | Won 2-1 | +161718 |
| 6standard | 13 | Ferrari Spampinato, Gonzalo (1579) | Won 2-0 | +151733 |
| 7draft | 61 | Warmenhoven, Ruud (1948) | Lost 1-2 | -141719 |
| 8draft | 14 | Dal Farra, Gionata (1620) | Won 2-1 | +161735 |
| 9draft | 23 | Merkel, Jan-Moritz (1873) | Lost 1-2 | -151720 |
| 10draft | 3 | Carvalho, Marcio (2093) | Lost 1-2 | -121708 |
| 11draft | 73 | Brackmann, Aaron (1911) | Won 2-1 | +221730 |
| 12draft | 41 | Keskitalo, Mikko (1576) | Won 2-1 | +151745 |
| 13extended | 26 | Leong, Ding Yuan (1843) | Lost 0-2 | -161729 |
| 14extended | 27 | Yasooka, Shota (2009) | Won 2-0 | +231752 |
| 15extended | 35 | Chambers, Adam (1911) | Lost 1-2 | -151737 |
| 16extended | 42 | Hamon, Yann (1839) | Lost 0-2 | -161721 |
| 17extended | 56 | Godinez Estrada, Gerardo (1873) | Lost 0-1 | -161705 |
| 18extended | 64 | Karsten, Frank (1842) | Lost 0-2 | -151690 |
| top | average opponent: 1764record: 9-9 | new rating: 1690 | ||
| Grand Prix Nottingham 2005 (RAV limited) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 64 | Gundersen, Thomas (1840) | Won 2-0 | +221667 |
| 5sealed | 24 | Lacroix, Yannick (1519) | Lost 0-2 | -211646 |
| 6sealed | 69 | Kolb, Markus (1707) | Lost 1-2 | -171629 |
| 7sealed | 77 | Maaten, Rogier (1892) | Won 2-0 | +231652 |
| 8sealed | 46 | Zidek, Arnost (1897) | Won 2-0 | +221674 |
| top | average opponent: 1771record: 3-2 | new rating: 1674 | ||
| Grand Prix Brussels 2004 (DST standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 142 | Di Toro, Marco (1520) | Lost 0-2 | -181472 |
| 3standard | 221 | Cauwelier, Quinten (1579) | Won 2-1 | +201492 |
| 4standard | 122 | Ebhodaghe, Idiata (1517) | Won 2-0 | +191511 |
| 5standard | 62 | Eidam, Martin (1466) | Won 2-0 | +171528 |
| 6standard | 47 | Wafo-Tapa, Guillaume (1663) | Won 2-0 | +201548 |
| 7standard | 19 | Kennes, Johan (1664) | Won 2-0 | +201568 |
| 8standard | 32 | Nguyen, Xuan-Phi (1617) | ID | 01568 |
| 9standard | 28 | Marciniszyn, Michal (1542) | Won 2-0 | +181586 |
| 10standard | 14 | Nguyen, Xuan-Phi (1644) | Lost 1-2 | -171569 |
| 11standard | 8 | Abreu, Joao (1554) | Won 2-0 | +181587 |
| 12standard | 30 | Braun, Matthias (1581) | Won 2-0 | +181605 |
| 13standard | 28 | Dols, Roel (1672) | Won 2-1 | +191624 |
| 14standard | 25 | Siron, Geoffrey (1800) | Won 2-0 | +211645 |
| top | average opponent: 1601record: 10-2-1 | new rating: 1645 | ||
| Grand Prix London 2003 (Onslaught block) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 96 | Grolleau, Antoine (1500) | Draw 1-1 | 01488 |
| 2block | 129 | Newberry, Stephen (1541) | Lost 1-2 | -171471 |
| 3block | 197 | Rodriguez Florido, Alex (1482) | Won 2-1 | +181489 |
| 4block | 164 | Hawkins, Jadon (1497) | Won 2-0 | +191508 |
| 5block | 117 | van den Brink, Peter (1522) | Lost 0-2 | -181490 |
| top | average opponent: 1508record: 2-2-1 | new rating: 1490 | ||
| Grand Prix Reims 2002 (extended) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 297 | Libert, Fabrice (1500) | Won 2-0 | +181501 |
| 2extended | 134 | Mellaerts, Damien (1522) | Won 2-1 | +181519 |
| 3extended | 35 | Vinh, Eric (1626) | Draw 1-1 | +21521 |
| 4extended | 88 | Karsten, Frank (1628) | Lost 1-2 | -161505 |
| 5extended | 169 | Aouidad, Karim (1537) | Lost 0-2 | -171488 |
| 6extended | 236 | Bannach, Frederic (1483) | Draw 1-1 | 01488 |
| 7extended | 236 | Luciani, Fabrice (1500) | Draw 1-1 | 01488 |
| top | average opponent: 1542record: 2-2-3 | new rating: 1488 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 31 | Van Audenaerde, Aldo (1500) | Lost 0-2 | -181482 |
| 2sealed | 174 | Kooistra, Thomas (1464) | Won 2-1 | +181500 |
| 3sealed | 176 | Forestier, Nicolas (1518) | Lost 0-2 | -181482 |
| 4sealed | 227 | Stefanovic, Marko (1523) | Lost 1-2 | -171465 |
| 5sealed | 216 | Waterreus, Mark (1462) | Won 2-1 | +181483 |
| top | average opponent: 1493record: 2-3 | new rating: 1483 | ||