Event: League Division 3

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Opponent Rating Result
Michael Carrigan 1139 0 - 1
Lawrence Caldicott 1263 1 - 0
Brian Ward 0 1 - 0
Andrew Parker 975 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

944 = (3377 + 400 * (2 - 1)) / 4)

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