Event: Dons Rapidplay KO

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Opponent Rating Result
Philip R Bonafont 2096 ½ - ½
Philip R Bonafont 2096 1 - 0
Nathan J Abbott 1748 ½ - ½
Nathan J Abbott 1748 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1922 = (7688 + 400 * (1 - 1)) / 4)

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