Event: Summer Max 480 Division

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Opponent Rating Result
Kim T Gilbert 121 ½ - ½
David Jeffs 135 1 - 0
Kim T Gilbert 121 0 - 1
David Jeffs 135 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

228 = (512 + 400 * (2 - 1)) / 4)

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