Event: Division Five

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Opponent Rating Result
Stuart E Wood 92 0 - 1
Chris East 116 1 - 0
Patrick Kelly 106 ½ - ½
Graham Barrett 111 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

106 = (425 + 400 * (1 - 1)) / 4)

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