Event: Internal club rated games

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Opponent Rating Result
Alan Ticehurst 1563 1 - 0
Alan Ticehurst 1563 1 - 0
Alan Ticehurst 1563 1 - 0
Alan Ticehurst 1563 1 - 0
Alan Ticehurst 1563 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1963 = (7815 + 400 * (5 - 0)) / 5)

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