Event: City Chess Swiss 2015-16

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Opponent Rating Result
Malvin Chadzamira 0 0 - 1
Ian Miell 0 0 - 1
David R Chambers 0 0 - 1
Martin Lake 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 4)) / 4)

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