Event: Essex Summer Rapid Plate

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Opponent Rating Result
Muhammad Faheem 1590 0 - 1
Muhammad Faheem 1590 1 - 0
Steven Mitchell 1953 0 - 1
Steven Mitchell 1953 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1772 = (7086 + 400 * (2 - 2)) / 4)

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