Event: 4-Board Division 2

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Opponent Rating Result
Giles Dunn 134 0 - 1
Richard Atkinson 126 1 - 0
Giles Dunn 134 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

265 = (394 + 400 * (2 - 1)) / 3)

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