Event: South Cheshire Shield

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Opponent Rating Result
Darren M Chell 1192 1 - 0
Matthew Dean 1172 1 - 0
Nick Deakin 1275 0 - 1
Neil Hankey 1186 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1406 = (4825 + 400 * (3 - 1)) / 4)

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