Event: Graded friendlies - rapidplay

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Opponent Rating Result
Brian Robert Woodard 1746 0 - 1
Brian Robert Woodard 1746 ½ - ½
Brian Robert Woodard 1746 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1746 = (5238 + 400 * (1 - 1)) / 3)

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