Event: B&DCL Div 3

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Opponent Rating Result
Michael J Litchfield 139 ½ - ½
Paul T Errington 130 0 - 1
Jan Van Heeckeren 111 1 - 0
Simon Errington 104 0 - 1
T Alan Wykes 107 ½ - ½
David Arorash 115 ½ - ½
Jan Van Heeckeren 111 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

117 = (817 + 400 * (2 - 2)) / 7)

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