Event: B&DCL Div 4

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Opponent Rating Result
Michael Tew 85 ½ - ½
Tim McCullagh 91 1 - 0
Jim Newman 105 ½ - ½
Phil Holden 100 ½ - ½
David Arorash 113 0 - 1
David W Lewis 96 ½ - ½
David W Lewis 96 1 - 0
Ken Dixon 113 1 - 0
John H Jenkins 79 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

186 = (878 + 400 * (3 - 1)) / 9)

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