Event: D&DCL Div 1

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Opponent	Rating	Result
Ralph MA Allen	1758	0 - 1
Steven J Burke	1938	½ - ½
Matthew Bubis	1773	1 - 0
Justin Smith	1525	½ - ½
Kevin J Dalley	1945	0 - 1
Derek A Jarvis	1900	1 - 0
Matthew Bubis	1773	1 - 0
Peter M Collins	1735	1 - 0

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

1893 = (14347 + 400 * (4 - 2)) / 8)