Event: League Division 2

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Opponent Rating Result
Joseph Rodney 0 ½ - ½
Lawrence Caldicott 1263 1 - 0
Pete Brennan 1539 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1067 = (2802 + 400 * (1 - 0)) / 3)

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