Event: Division 1

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Opponent Rating Result
Chris Fewtrell 146 1 - 0
Simon Pickard 131 1 - 0
Gerald Udell 116 1 - 0
Roger D Knight 156 0 - 1
Simon Pickard 131 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

216 = (680 + 400 * (3 - 2)) / 5)

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