Event: Club Championship

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Opponent Rating Result
J Dave H Hair 1728 0 - 1
Dennis A White 1556 0 - 1
Richard Oxnard 1563 ½ - ½
Joe Murray 1461 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1477 = (6308 + 400 * (1 - 2)) / 4)

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