Event: Camborne club championship 2022/23

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Opponent Rating Result
Richard AL Smith 1805 ½ - ½
Philip J Williams 1893 ½ - ½
Jeff J Nicholas 1751 ½ - ½
Colin Sellwood 1785 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1709 = (7234 + 400 * (0 - 1)) / 4)

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