Event: Division 2

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Opponent Rating Result
Ian Gambles 1610 1 - 0
Graham K Brown 1731 ½ - ½
Graeme Hood 1877 1 - 0
Chris Haynes 1725 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2036 = (6943 + 400 * (3 - 0)) / 4)

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