Event: DHCC New Year 2023 Online Rapidplay

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Opponent Rating Result
John M Oughton 0 1 - 0
Geoffrey D Brown 0 1 - 0
Andrew Nettleship 0 1 - 0
Chris N Ross 0 1 - 0
David Watson 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (5 - 0)) / 5)

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