Event: 3rd Cornwall Online League

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Opponent Rating Result
Joseph Gregory 0 ½ - ½
Fabian Thomas 0 0 - 1
Richard Nancarrow 1478 ½ - ½
Lloyd Russell 1279 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

689 = (2757 + 400 * (1 - 1)) / 4)

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