Event: Sheffield, 3rd Mini-Standardplay

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Opponent Rating Result
Jamie Wright 200 0 - 1
Zilu Ji 180 0 - 1
George Swanson 1569 0 - 1
Dennis Johns 180 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

332 = (2129 + 400 * (1 - 3)) / 4)

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