Event: Division 2

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Opponent Rating Result
Peter Logan 1538 ½ - ½
Robert Grounds 1319 0 - 1
Karl Barnsley 1016 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1024 = (3873 + 400 * (0 - 2)) / 3)

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Opponent Rating Result
George Fishwick 1305 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

905 = (1305 + 400 * (0 - 1)) / 1)