Event: Essex Summer Rapid Plate

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Opponent Rating Result
Barry S Sheppard 1780 1 - 0
Barry S Sheppard 1780 1 - 0
Stephen Middleton 1868 ½ - ½
Stephen Middleton 1868 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2124 = (7296 + 400 * (3 - 0)) / 4)

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