Event: Division 1 - Davy Trophy

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Opponent Rating Result
Martin J Sheard 158 1 - 0
Geoffrey D Brown 148 0 - 1
Phil Griffiths 166 ½ - ½
Paul Fletcher 168 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

160 = (640 + 400 * (1 - 1)) / 4)

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