Event: Division 3

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Opponent Rating Result
Lee Boyes 1587 0 - 1
Kenneth L Marsden 1418 0 - 1
Dave Sykes 1563 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1123 = (4568 + 400 * (0 - 3)) / 3)

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