Event: HDCA Summer League Division 1

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Opponent Rating Result
R Malcolm Hara 124 ½ - ½
Giles Dunn 150 1 - 0
Paul A Allison 136 1 - 0
N Charles Clayton 102 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

428 = (512 + 400 * (3 - 0)) / 4)

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