Event: B&DCL Div 5

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Opponent	Rating	Result
Richard W Quin	116	½ - ½
Joseph Wikramaratna-Clarke	97	1 - 0
Matthew (Matt) Austin	80	1 - 0
Andrew Manson	100	1 - 0
Derek Mount	122	0 - 1
Paul Sandy	113	1 - 0
Paul Sandy	113	1 - 0

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

334 = (741 + 400 * (5 - 1)) / 7)