Event: Rapidplay

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Opponent Rating Result
Paul DJ Hampton 189 0 - 1
Matthew McLachlan 147 ½ - ½
Paul DJ Hampton 189 1 - 0
Matthew McLachlan 147 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

268 = (672 + 400 * (2 - 1)) / 4)

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