Event: Division 1

Opponent Rating Result
Malcolm P Kingsley 1901 ½ - ½
Robert T Killeen 1940 1 - 0
Steven Mitchell 1825 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1889 = (5666 + 400 * (1 - 1)) / 3)

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