10th Winterthur 
Master Open (Elo > 1899)
Since the 8th Winterthur Chess Week, the open tournament is played in two categories, for the first time. The Master Open is open to every chess player with Elo 1900 and more.
Further information on the tournament can be found in the invitation and the tournament schedule.
The former winners of the tournament
| WSW 2009 (58+83 participants) |
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| WSW 2008 (54+62 participants) |
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| WSW 2007 (122 participants) |
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| WSW 2006 (143 participants) |
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| WSW 2005 (131 participants) |
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| WSW 2004 (117 participants) |
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ex aequo:
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| WSW 2003 (116 participants) |
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| WSW 2002 (80 participants) |
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| WSW 2001 (82 participants) |
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"current Elo" refers to the rating according to the May-2010-list of the FIDE.
