Event: Division 4

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Opponent Rating Result
Ed Swann 1366 0 - 1
Joseph T Fearnhead 1442 0 - 1
John G Paton 1530 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1179 = (4338 + 400 * (0 - 2)) / 3)

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