Event: Essex Summer Rapid Plate

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Opponent Rating Result
Colin L Ellis 1415 1 - 0
Colin L Ellis 1415 1 - 0
James D Steele 1990 0 - 1
James D Steele 1990 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1703 = (6810 + 400 * (2 - 2)) / 4)

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