Event: 6600 max Rapid-play

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Opponent Rating Result
Julian H Summerfield 1877 0 - 1
Arnold Peace 1634 ½ - ½
Julian H Summerfield 1877 0 - 1
Arnold Peace 1634 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1656 = (7022 + 400 * (1 - 2)) / 4)

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