Event: South Cheshire Shield

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Opponent Rating Result
Stephen J Emmerton 1545 ½ - ½
Steve R Hill 1822 0 - 1
Alberto Gissi 1669 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1545 = (5036 + 400 * (0 - 1)) / 3)

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