Event: Division Two

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Opponent Rating Result
Peter W Leary 1810 ½ - ½
Richard J E McNally 1980 0 - 1
Terry W Walker 1810 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1867 = (5600 + 400 * (1 - 1)) / 3)

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