Event: South Cheshire Shield

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Opponent Rating Result
Neville Layhe 1683 0 - 1
Richard P Cantliff 1593 1 - 0
Andrew Barker 1562 1 - 0
Chris P Hankey 1814 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1663 = (6652 + 400 * (2 - 2)) / 4)

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