Event: Fred Day Cup Division One

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Opponent	Rating	Result
Raoul Hessling	0
Derek Simpson	0
Gary Kenworthy	0
Steven Cox	0
M Kevin Chojnacki	0
Peter Hunt	0
Hans-Peter Hansen	0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

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