Event: B&DCL Div 5

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Opponent Rating Result
Michael Tew 1240 ½ - ½
Andre F Mills 1323 0 - 1
Chris Spence 1400 0 - 1
John Beasant 1415 ½ - ½
Peter Erhardt 1263 ½ - ½
Rachel Richardson 1337 1 - 0
Michael Tew 1240 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1317 = (9218 + 400 * (2 - 2)) / 7)

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