Event: League Championship

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Opponent Rating Result
Holden Davis 171 0 - 1
James C.C. Foster 0 ½ - ½
John Dobson 131 1 - 0
Lawrence Bland 121 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

6 = (423 + 400 * (1 - 2)) / 4)

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