Event: Division Four

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Opponent Rating Result
Eric Horwill 130 ½ - ½
Barry Knee 113 ½ - ½
Barry R Smith 117 ½ - ½
Joyce H Evans 52 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

103 = (412 + 400 * (0 - 0)) / 4)

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