Event: South Cheshire Shield

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Opponent Rating Result
David I Hulme 135 0 - 1
Simon Layhe 116 0 - 1
Simon Layhe 117 0 - 1
Myron Odingo 120 0 - 1
Kobus Nienaber 90 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-204 = (578 + 400 * (0 - 4)) / 5)

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