Event: Bloodworth League

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Opponent Rating Result
Brian Medhurst 133 0 - 1
Derek J Scantlebury 91 1 - 0
E Alan Crickmore 100 ½ - ½
E Alan Crickmore 100 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

106 = (424 + 400 * (1 - 1)) / 4)

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