Event: 9th South Cheshire Shield

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Opponent Rating Result
David P Price 119 ½ - ½
Nicholas PA Wright 104 1 - 0
Kobus Nienaber 90 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

104 = (313 + 400 * (1 - 1)) / 3)

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