Event: 3rd Cornwall Online League

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Opponent Rating Result
Richard AL Smith 0 ½ - ½
Geoffrey W Lingard 0 1 - 0
Nigel J Kirkman 1691 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

830 = (1691 + 400 * (2 - 0)) / 3)

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