Event: Mini League

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Opponent Rating Result
Keith Marsh 127 0 - 1
Paul Hardy 111 0 - 1
Stephen P Burton 55 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-36 = (293 + 400 * (1 - 2)) / 3)

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Opponent Rating Result
Paul Gelder 121 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

121 = (121 + 400 * (0 - 0)) / 1)