Event: Division Four

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Opponent Rating Result
David Cleak 121 ½ - ½
Peter Hodkinson 103 0 - 1
Richard Bailey 107 0 - 1
Jeremy Humphries 108 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-190 = (439 + 400 * (0 - 3)) / 4)

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