Event: Division 5

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Opponent Rating Result
Stephen Morley 93 0 - 1
Jose Serrano 0 0 - 1
Malcolm Jackson 109 0 - 1
Graham J Gibson 111 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-222 = (313 + 400 * (0 - 3)) / 4)

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