Event: Div 1 - Davy Trophy

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Opponent Rating Result
Paul Fletcher 2014 1 - 0
Jim Davis 1922 1 - 0
Geoffrey D Brown 1786 1 - 0
D Martin Howard 1984 1 - 0
Peter M Gayson 2158 ½ - ½
D Martin Howard 1984 1 - 0
Aram Ter-Gevorkian 2031 1 - 0
Jim Davis 1922 ½ - ½
Daniel Gottschalk 1903 1 - 0
Xi-Yang Guo 2041 0 - 1
Mark S Allison 1938 1 - 0
Ken A McIntosh 1827 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2226 = (23510 + 400 * (9 - 1)) / 12)

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