Event: York Summer 2023 Group 2

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Opponent Rating Result
Jack Howorth 0 0 - 1
Paul W Jones 0 ½ - ½
Stephen Donkin 0 0 - 1
Norman G Andrews 0 0 - 1
Derek Toyne 0 1 - 0
T Noel Stewart 0
David Wm Smith 0 1 - 0
Daniel Meredith 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-114 = (0 + 400 * (2 - 4)) / 7)

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