Event: Division C

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Opponent Rating Result
Ken Lawson 88 0 - 1
Patrick N Coleman 104 1 - 0
Peter Ayling 100 1 - 0
Patrick N Coleman 104 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

99 = (396 + 400 * (2 - 2)) / 4)

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