Witkam, Wouter
Current rating: 1598
Record: 5-3-3 (GP) / 17-13 (professional)
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 78 | Snijders, Joris (1564) | Draw 1-1 | 01579 |
| 4sealed | 70 | Benschop, Martijn (1534) | Lost 1-2 | -191560 |
| 5sealed | 127 | Simon, Marco (1582) | Won 2-0 | +181578 |
| 6sealed | 82 | Sheljasov, Georg (1612) | Won 2-1 | +191597 |
| 7sealed | 45 | Smink, Robert (1594) | Won 2-1 | +181615 |
| 8sealed | 30 | Hoeh, Hans Joachim (1660) | Lost 0-2 | -171598 |
| top | average opponent: 1591record: 3-2-1 | new rating: 1598 | ||
| Grand Prix Amsterdam 2001 (INV limited) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 100 | Debard, Michael (1605) | Draw 1-1 | +11564 |
| 3sealed | 112 | Edwards, Rudy (1515) | Draw 1-1 | -11563 |
| 4sealed | 190 | Heim, Matthias (1516) | Won 2-0 | +171580 |
| 5sealed | 131 | Pacifici, Guido (1569) | Won 2-0 | +181598 |
| 6sealed | 83 | Dujardin, Francois-Xavier (1554) | Lost 0-2 | -191579 |
| top | average opponent: 1552record: 2-1-2 | new rating: 1579 | ||
| 1999 World Championship (mixed) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 33 | Curto Vives, Xavi (1435) | Lost 0-0 | -211553 |
| 2standard | 86 | Malherbaud, Pierre (1666) | Lost 0-0 | -161537 |
| 3standard | 83 | Bullock, David (1465) | Won 0-0 | +171554 |
| 4standard | 83 | Brown-Santirso, Damian (1436) | Won 0-0 | +161570 |
| 5standard | 37 | Bastos, Frederico (1493) | Won 2-0 | +161586 |
| 6standard | 43 | Kronstrand, Hans-Ole (1466) | Won 0-0 | +161602 |
| 7rochester | 24 | Ishida, Itaru (1550) | Lost 0-0 | -191583 |
| 8rochester | 41 | LePine, Mark (1726) | Lost 0-0 | -151568 |
| 9rochester | 44 | Svaldi, Guilherme (1515) | Lost 0-0 | -191549 |
| 10rochester | 60 | Virtanen, Pasi (1485) | Won 0-0 | +171566 |
| 11rochester | 39 | Selden, Brian (1680) | Won 0-0 | +201586 |
| 12rochester | 69 | Bevand, Manuel (1528) | Lost 0-0 | -191567 |
| 13extended | 58 | Yap, Kok Hou (1505) | Won 0-0 | +171584 |
| 14extended | 44 | Svaldi, Guilherme (1532) | Lost 0-0 | -191565 |
| 15extended | 57 | Yu, Dino (1506) | Won 0-0 | +171582 |
| 16extended | 36 | Tsang, Terry (1653) | Lost 0-0 | -171565 |
| 17extended | 57 | Virtanen, Pasi (1508) | Won 0-0 | +171582 |
| 18extended | 42 | Hahn, Jurgen (1535) | Lost 0-0 | -191563 |
| top | average opponent: 1538record: 9-9 | new rating: 1563 | ||
| 1999 European Championship (mixed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 33 | Cikos, Marko (1500) | Lost 1-2 | -181482 |
| 2standard | 90 | Sprojcar, Jiri (1482) | Won 2-0 | +181500 |
| 3standard | 39 | Bastos, Frederico (1500) | Won 2-0 | +181518 |
| 4standard | 34 | Caurla, Fabrice (1517) | Won 2-0 | +181536 |
| 5standard | 32 | Kronstrand, Hans-Ole (1521) | Won 2-1 | +181554 |
| 6standard | 10 | Liptak, Karoly (1539) | Won 0-0 | +171571 |
| 7draft | 12 | Bell, Markus (1526) | Lost 0-2 | -181553 |
| 8draft | 28 | Soderberg, Richard (1572) | Lost 0-2 | -181535 |
| 9draft | 38 | Klauser, Benedikt (1616) | Won 0-0 | +191554 |
| 10draft | 22 | Canu, Franck (1616) | Won 2-0 | +201574 |
| 11draft | 6 | Ovutmen, Sarp (1578) | Lost 0-0 | -181556 |
| 12draft | 39 | Martin, Benedict (1558) | Won 2-1 | +181574 |
| top | average opponent: 1544record: 8-4 | new rating: 1574 | ||